Alert archive / Iowa / River Flood Warnings in 2023
River Flood Warning 21, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at Apr 10, 2023, 4:18 AM CDT for Lyon County, Sioux County, Iowa; Lincoln County, South Dakota. It was in force for 21 days.
The area
The outline as issued.
The facts
- Issued
- Apr 10, 2023, 4:18 AM CDT (09:18 UTC)
- Expired
- May 1, 2023, 4:18 AM CDT
- In force
- 21 days
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Lyon County, IA, Sioux County, IA, Lincoln County, SD
The radar
The Sioux Falls radar (KFSD), 29 km from the middle of the area, began a volume at 09:17 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Big Sioux River above Canton (CBSS2).
- Action stage
- 1233 ft
- Minor stage
- 1235 ft
- Moderate stage
- 1238 ft
- Major stage
- 1245 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
065
WGUS43 KFSD 100918
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
418 AM CDT Mon Apr 10 2023
...The National Weather Service in Sioux Falls SD has issued a Flood
Warning for the following rivers in Iowa...South Dakota...
Big Sioux River near Canton affecting Sioux, Lincoln and Lyon
Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Monday.
&&
IAC119-167-SDC083-111130-
/O.NEW.KFSD.FL.W.0021.230410T0918Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230410T0900Z.000000T0000Z.NO/
418 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT IN EFFECT FROM EARLY THIS MORNING
UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...From early this morning until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 4:00 AM CDT Monday the stage was 1235.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:00 AM CDT Monday was 1235.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.0 Mon 4 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
Kalin10 follow-up statements
642
WGUS83 KFSD 101408
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
908 AM CDT Mon Apr 10 2023
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...Minnesota...
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River at Akron affecting Union and Plymouth Counties.
Rock River at Luverne affecting Rock County.
Rock River at Rock Rapids affecting Lyon County.
...The Flood Warning continues for the following rivers in South
Dakota...Iowa...Minnesota...
Split Rock Creek near Corson affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lyon, Lincoln and Sioux
Counties.
Big Sioux River near Egan affecting Moody County.
Big Sioux River near Trent affecting Moody County.
Big Sioux River above Hawarden affecting Union, Lincoln and Sioux
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Rock River near Hardwick affecting Rock County.
.Snow melt and increased reservoir releases will cause the river
flows to become high. Expect minor flooding downstream from the dam.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Tuesday morning at 1115 AM CDT.
&&
MNC133-111615-
/O.EXT.KFSD.FL.W.0016.000000T0000Z-230412T1800Z/
/LUVM5.1.SM.230410T0322Z.230410T1800Z.230411T1800Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY WEDNESDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Luverne.
* WHEN...Until early Wednesday afternoon.
* IMPACTS...At 10.0 feet, significant agricultural flooding begins.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Monday the stage was 10.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Monday was 10.4 feet.
- Forecast...The river is expected to rise to a crest of 10.5
feet this afternoon. It will then fall below flood stage
early tomorrow afternoon.
- Flood stage is 10.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Rock River
Luverne 10.0 10.4 Mon 8 am 10.1 9.3 8.7
&&
LAT...LON 4370 9617 4368 9613 4364 9618 4350 9616
4350 9621 4364 9622
$$
SDC099-111615-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230414T1800Z/
/DERS2.1.SM.230409T2243Z.230411T0000Z.230413T1800Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY FRIDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Friday afternoon.
* IMPACTS...At 14.0 feet, significant amounts of agricultural lands
are flooded through the basin, and the park in Dell Rapids begins
to flood.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Monday the stage was 13.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Monday was 13.1 feet.
- Forecast...The river is expected to rise to a crest of 13.6
feet this evening. It will then fall below flood stage early
Thursday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Dell Rapids 12.0 13.0 Mon 8 am 13.4 12.6 12.1
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC119-111615-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230416T0000Z/
/RAPI4.1.SM.230410T2000Z.230412T1800Z.230415T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until Saturday evening.
* IMPACTS...At 16.0 feet, the higher banks on the left side of the
river, and the lower banks on the right side, will begin flooding.
* ADDITIONAL DETAILS...
- At 8:15 AM CDT Monday the stage was 12.7 feet.
- Forecast...The river is expected to rise above flood stage
late this afternoon to a crest of 14.6 feet early Wednesday
afternoon. It will then fall below flood stage Friday
evening.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Rock River
Rock Rapid 13.0 12.7 Mon 8 am 13.8 14.5 14.3
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC099-111615-
/O.EXT.KFSD.FL.W.0007.000000T0000Z-230411T2200Z/
/COSS2.1.SM.230409T0253Z.230409T2030Z.230410T2200Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL TOMORROW
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Split Rock Creek near Corson.
* WHEN...Until tomorrow afternoon.
* IMPACTS...At 9.0 feet, the parking lot at the racetrack may be
flooded.
* ADDITIONAL DETAILS...
- At 7:45 AM CDT Monday the stage was 9.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 AM CDT Monday was 9.9 feet.
- Forecast...The river is expected to fall below flood stage
late this afternoon and continue falling to 5.1 feet Saturday
morning.
- Flood stage is 8.5 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Split Rock Creek
Corson 8.5 9.0 Mon 7 am 7.9 7.2 6.5
&&
LAT...LON 4367 9658 4365 9654 4363 9656 4359 9654
4355 9660 4357 9660 4360 9658 4364 9660
$$
IAC149-SDC127-111615-
/O.EXT.KFSD.FL.W.0015.230410T2308Z-000000T0000Z/
/AKRI4.2.SM.230410T2308Z.230412T1200Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT FROM THIS EVENING UNTIL
FURTHER NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...From this evening until further notice.
* IMPACTS...At 19.5 feet, several farm houses are flooded.
* ADDITIONAL DETAILS...
- At 8:00 AM CDT Monday the stage was 14.8 feet.
- Forecast...The river is expected to rise above flood stage
this evening and continue rising to a crest of 18.3 feet
Wednesday morning.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Akron 16.0 14.8 Mon 8 am 17.3 18.3 18.3
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-111615-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.1.SM.230410T1100Z.230410T1345Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 8.0 feet, the lower banks on the left side of the
river overflow.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Monday the stage was 8.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM CDT Monday was 8.2 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 8.2 Mon 8 am MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-111615-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230410T1300Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 8:00 AM CDT Monday the stage was 1235.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 AM CDT Monday was 1235.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.4 Mon 8 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
SDC101-111615-
/O.CON.KFSD.FL.W.0020.000000T0000Z-000000T0000Z/
/EGAS2.1.SM.230410T0705Z.230410T1145Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Egan.
* WHEN...Until further notice.
* IMPACTS...At 1516.5 feet, flooding begins to affect agricultural
lands around Egan.
* ADDITIONAL DETAILS...
- At 8:00 AM CDT Monday the stage was 1517.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 AM CDT Monday was 1517.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1516.5 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Egan 1516.5 1517.0 Mon 8 am MSG MSG MSG
&&
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673
$$
MNC133-111615-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230410T1030Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Monday the stage was 14.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Monday was 14.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.4 Mon 8 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
SDC101-111615-
/O.CON.KFSD.FL.W.0017.000000T0000Z-000000T0000Z/
/TRES2.2.SM.230409T1820Z.230410T1245Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Trent.
* WHEN...Until further notice.
* IMPACTS...At 1498.0 feet, flood waters reach into the backyards of
several houses in Trent.
* ADDITIONAL DETAILS...
- At 8:15 AM CDT Monday the stage was 1498.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:15 AM CDT Monday was 1498.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1495.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Trent 1495.0 1498.0 Mon 8 am MSG MSG MSG
&&
LAT...LON 4394 9673 4394 9667 4389 9663 4385 9663
4385 9668 4388 9668
$$
IAC167-SDC083-127-111615-
/O.CON.KFSD.FL.W.0011.000000T0000Z-000000T0000Z/
/HWDI4.2.SM.230410T0715Z.230414T0000Z.000000T0000Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until further notice.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Monday the stage was 21.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Monday was 21.3 feet.
- Forecast...The river will rise to 24.3 feet early Wednesday
afternoon. It will then fall early Thursday morning. It will
rise to 24.4 feet Thursday evening. It will then fall again
but remain above flood stage.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Hawarden 20.5 21.3 Mon 8 am 24.1 24.3 24.3
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
SDC011-111615-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230410T0245Z.000000T0000Z.NR/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring. This approaches the flood of
record.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1635.0 feet, township roads northeast of Brookings
begin to flood.
* ADDITIONAL DETAILS...
- At 8:15 AM CDT Monday the stage was 1634.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:15 AM CDT Monday was 1634.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.6 Mon 8 am MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
SDC011-101-111615-
/O.CON.KFSD.FL.W.0014.230410T2248Z-230414T0600Z/
/BRKS2.1.SM.230410T2248Z.230411T1200Z.230413T0600Z.NO/
908 AM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT FROM THIS AFTERNOON
TO EARLY FRIDAY MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...From this afternoon to early Friday morning.
* IMPACTS...At 9.0 feet, significant amounts of pasture and farm
lands begin flooding on the left bank of the river. The road south
of the Brookings water treatment plant is flooded, as is 217th
Street between 468th and 469th Avenues.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Monday the stage was 8.0 feet.
- Forecast...The river is expected to rise above flood stage
late this afternoon to a crest of 9.4 feet tomorrow morning.
It will then fall below flood stage early Thursday morning.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Brookings 9.0 8.0 Mon 8 am 9.4 9.1 8.9
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SST038
WGUS83 KFSD 110251
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
951 PM CDT Mon Apr 10 2023
...The Flood Warning is extended for the following rivers in South
Dakota...
Big Sioux River near Brookings affecting Brookings and Moody
Counties.
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...Minnesota...
Rock River at Rock Rapids affecting Lyon County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lyon, Lincoln and Sioux
Counties.
Big Sioux River above Dell Rapids affecting Minnehaha and Moody
Counties.
Big Sioux River near Trent affecting Moody County.
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Lincoln, Sioux and Union
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Rock River near Hardwick affecting Rock County.
...The Flood Warning is cancelled for the following rivers in South
Dakota...Minnesota...
Big Sioux River near Egan affecting Moody County.
Split Rock Creek near Corson affecting Minnehaha County.
Rock River at Luverne affecting Rock County.
.Snow melt and increased reservoir releases will cause the river
flows to become high. Expect minor flooding downstream from the dam.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Tuesday morning.
&&
SDC101-110400-
/O.CAN.KFSD.FL.W.0020.000000T0000Z-230411T0251Z/
/EGAS2.1.SM.230410T0705Z.230410T1145Z.230410T1645Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Big Sioux River near Egan.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 1515.4 feet.
- Forecast...No forecast is available for this location.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Egan 1516.5 1515.4 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673
$$
MNC133-110400-
/O.CAN.KFSD.FL.W.0016.000000T0000Z-230411T0251Z/
/LUVM5.1.SM.230410T0322Z.230410T1615Z.230410T1724Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Rock River at Luverne.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Monday the stage was 8.5 feet.
- Forecast...The river is expected to fall to 5.7 feet Saturday
evening.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Rock River
Luverne 10.0 8.5 Mon 8 pm 8.1 7.5 6.7
&&
LAT...LON 4370 9617 4368 9613 4364 9618 4350 9616
4350 9621 4364 9622
$$
SDC099-110400-
/O.CAN.KFSD.FL.W.0007.000000T0000Z-230411T0251Z/
/COSS2.1.SM.230409T0253Z.230409T2030Z.230410T1518Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Split Rock Creek near Corson.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Monday the stage was 7.4 feet.
- Forecast...The river is expected to rise to a crest of 7.6
feet just after midnight tonight.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Split Rock Creek
Corson 8.5 7.4 Mon 8 pm 7.1 6.6 6.0
&&
LAT...LON 4367 9658 4365 9654 4363 9656 4359 9654
4355 9660 4357 9660 4360 9658 4364 9660
$$
SDC011-101-120500-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-230415T0000Z/
/BRKS2.1.SM.230411T0900Z.230411T1800Z.230414T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until Friday evening.
* IMPACTS...At 9.0 feet, significant amounts of pasture and farm
lands begin flooding on the left bank of the river. The road south
of the Brookings water treatment plant is flooded, as is 217th
Street between 468th and 469th Avenues.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Monday the stage was 8.7 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 9.2 feet early tomorrow afternoon.
It will then fall below flood stage Thursday evening.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Brookings 9.0 8.7 Mon 8 pm 9.2 9.2 9.0
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
IAC119-120500-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230415T0600Z/
/RAPI4.1.SM.230411T1200Z.230412T1200Z.230414T0600Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until early Saturday morning.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Monday the stage was 12.9 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow morning to a crest of 13.4 feet Wednesday morning.
It will then fall below flood stage early Friday morning.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Rock River
Rock Rapid 13.0 12.9 Mon 9 pm 13.2 13.4 13.1
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC011-120500-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.1.SM.230410T1100Z.230411T0145Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 8.0 feet, the lower banks on the left side of the
river overflow.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Monday the stage was 8.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Monday was 8.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 8.6 Mon 8 pm MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-120500-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 1236.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Monday was 1236.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1236.0 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-120500-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230410T1030Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Monday the stage was 14.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Monday was 14.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.4 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
SDC099-101-120500-
/O.CON.KFSD.FL.W.0018.000000T0000Z-000000T0000Z/
/DRBS2.1.SM.230410T0426Z.230410T0530Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River above Dell Rapids.
* WHEN...Until further notice.
* IMPACTS...At 1481.0 feet, agricultural flooding upstream of Dell
Rapids begins, and the City Park and ball fields on the right bank
in Dell Rapids will begin flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 1481.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Monday was 1481.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1481.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Dell Rapids 1481.0 1481.3 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4385 9668 4385 9663 4381 9668 4381 9676
4383 9675 4383 9669
$$
SDC101-120500-
/O.CON.KFSD.FL.W.0017.000000T0000Z-000000T0000Z/
/TRES2.1.SM.230409T1820Z.230410T1600Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Trent.
* WHEN...Until further notice.
* IMPACTS...At 1495.0 feet, flooding begins to affect agricultural
lands west of Trent along 240th Street.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Monday the stage was 1495.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Monday was 1498.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1495.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Trent 1495.0 1495.1 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4394 9673 4394 9667 4389 9663 4385 9663
4385 9668 4388 9668
$$
IAC149-SDC127-120500-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.2.SM.230411T0312Z.230412T0600Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Monday the stage was 15.9 feet.
- Forecast...The river will rise above flood stage late this
evening to 18.0 feet early Wednesday afternoon. It will then
fall Thursday evening. It will rise to 17.7 feet early Friday
afternoon. It will then fall again but remain above flood
stage.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Akron 16.0 15.9 Mon 9 pm 17.8 17.8 17.6
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC099-120500-
/O.CON.KFSD.FL.W.0012.000000T0000Z-230414T1800Z/
/DERS2.1.SM.230409T2243Z.230411T0600Z.230413T1800Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL EARLY FRIDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Friday afternoon.
* IMPACTS...At 14.0 feet, significant amounts of agricultural lands
are flooded through the basin, and the park in Dell Rapids begins
to flood.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Monday the stage was 13.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Monday was 13.3 feet.
- Forecast...The river is expected to rise to a crest of 13.5
feet just after midnight tonight. It will then fall below
flood stage early Thursday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Dell Rapids 12.0 13.3 Mon 9 pm 13.0 12.2 11.9
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-120500-
/O.CON.KFSD.FL.W.0011.000000T0000Z-000000T0000Z/
/HWDI4.2.SM.230410T0715Z.230411T1800Z.000000T0000Z.NO/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until further notice.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Monday the stage was 22.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 PM CDT Monday was 22.2 feet.
- Forecast...The river will rise to 24.0 feet early tomorrow
afternoon. It will then fall Wednesday evening. It will rise
to 23.4 feet Thursday evening. It will then fall again but
remain above flood stage.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Big Sioux River
Hawarden 20.5 22.2 Mon 8 pm 23.9 23.1 23.4
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
SDC011-120500-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230410T0245Z.000000T0000Z.NR/
951 PM CDT Mon Apr 10 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring. This approaches the flood of
record.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1634.0 feet, agricultural flooding begins northeast
of Brookings.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Monday the stage was 1634.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Monday was 1634.7 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.3 Mon 9 pm MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
SG521
WGUS83 KFSD 111131
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
631 AM CDT Tue Apr 11 2023
...The Flood Warning is extended for the following rivers in South
Dakota...
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...Minnesota...
Big Sioux River at Brandon affecting Lyon, Minnehaha and Lincoln
Counties.
Big Sioux River near Estelline affecting Hamlin and Brookings
Counties.
Medary Creek near Medary affecting Brookings County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lyon, Sioux and Lincoln
Counties.
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Lincoln, Sioux and Union
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Rock River near Hardwick affecting Rock County.
Rock River at Rock Rapids affecting Lyon County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued late Tuesday morning.
&&
SDC099-121345-
/O.EXT.KFSD.FL.W.0023.000000T0000Z-230416T0000Z/
/SFLS2.1.SM.230411T0157Z.230412T0000Z.230415T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until Saturday evening.
* IMPACTS...At 15.0 feet, some farm buildings between Renner and
Sioux Falls are threatened by high water.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Tuesday the stage was 13.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Tuesday was 13.2 feet.
- Forecast...The river is expected to rise to a crest of 13.6
feet this evening. It will then fall below flood stage Friday
evening or night.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Sioux Falls I-9 12.0 13.2 Tue 6 am 13.5 12.7 12.0
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-101-121345-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-230415T0936Z/
/BRKS2.1.SM.230411T0424Z.230413T0000Z.230414T0936Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until early Saturday morning.
* IMPACTS...At 10.0 feet, flooding begins to affect agricultural
lands along the right bank of the river.
* ADDITIONAL DETAILS...
- At 5:45 AM CDT Tuesday the stage was 9.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:45 AM CDT Tuesday was 9.6 feet.
- Forecast...The river is expected to rise to a crest of 10.1
feet tomorrow evening. It will then fall below flood stage
Friday.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Brookings 9.0 9.6 Tue 5 am 10.0 10.0 8.8
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
IAC119-SDC083-099-121345-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230411T1045Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Tuesday the stage was 1304.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Tuesday was 1304.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.6 Tue 6 am MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-121345-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.1.SM.230411T0703Z.230411T1100Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1644.0 feet, significant flooding of crop and pasture
land begins.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Tuesday the stage was 1644.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Tuesday was 1644.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1644.5 Tue 6 am MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC011-121345-
/O.CON.KFSD.FL.W.0024.000000T0000Z-000000T0000Z/
/MDYS2.1.SM.230410T1939Z.230411T0045Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Medary Creek near Medary.
* WHEN...Until further notice.
* IMPACTS...At 1588.0 feet, minor flooding of pasture lands begins.
* ADDITIONAL DETAILS...
- At 6:15 AM CDT Tuesday the stage was 1588.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:15 AM CDT Tuesday was 1588.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1588.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Medary Creek
Medary 1588.0 1588.3 Tue 6 am MSG MSG MSG
&&
LAT...LON 4430 9664 4427 9647 4424 9647 4428 9663
4422 9675 4418 9675 4419 9677 4423 9678
$$
SDC011-121345-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1030Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 10.5 feet, 198th Street and 199th Street between
466th and 467th avenues are flooded, as is 202nd Street between
465th and 467th avenues, and 465th Avenue between 203rd and 204th
streets.
* ADDITIONAL DETAILS...
- At 5:45 AM CDT Tuesday the stage was 10.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:45 AM CDT Tuesday was 10.3 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 10.2 Tue 5 am MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-121345-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Tuesday the stage was 1235.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Tuesday was 1236.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.6 Tue 6 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-121345-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230411T1015Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Tuesday the stage was 14.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Tuesday was 15.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.9 Tue 5 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
IAC149-SDC127-121345-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.2.SM.230411T0500Z.230412T0600Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Tuesday the stage was 16.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Tuesday was 16.4 feet.
- Forecast...The river will rise to near 18.0 feet early
tomorrow afternoon and remain near those levels until Friday
or Saturday before slowly falling.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Akron 16.0 16.4 Tue 6 am 18.0 17.6 17.7
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC099-121345-
/O.CON.KFSD.FL.W.0012.000000T0000Z-230414T1800Z/
/DERS2.1.SM.230409T2243Z.230411T1200Z.230413T1800Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL EARLY FRIDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Friday afternoon.
* IMPACTS...At 14.0 feet, significant amounts of agricultural lands
are flooded through the basin, and the park in Dell Rapids begins
to flood.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Tuesday the stage was 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Tuesday was 13.3 feet.
- Forecast...The river is expected to crest near 13.4 feet this
morning. It will then fall below flood stage Thursday
afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Dell Rapids 12.0 12.7 Tue 5 am 12.5 12.0 11.6
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-121345-
/O.CON.KFSD.FL.W.0011.000000T0000Z-000000T0000Z/
/HWDI4.2.SM.230410T0715Z.230411T1800Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until further notice.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Tuesday the stage was 22.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Tuesday was 22.6 feet.
- Forecast...The river will rise to near 24.0 feet this
afternoon and remain near those levels until Friday before
slowly falling.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Hawarden 20.5 22.6 Tue 5 am 23.5 23.2 23.2
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-121345-
/O.CON.KFSD.FL.W.0009.000000T0000Z-230415T0600Z/
/RAPI4.1.SM.230411T0910Z.230412T1200Z.230414T0600Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until early Saturday morning.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 5:15 AM CDT Tuesday the stage was 13.0 feet.
- Forecast...The river is expected to rise to a crest near 13.4
feet tomorrow morning. It will then fall below flood stage
early Friday morning.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Rock River
Rock Rapid 13.0 13.0 Tue 5 am 13.4 13.3 12.8
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC011-121345-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230410T0245Z.000000T0000Z.NO/
631 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1635.0 feet, township roads northeast of Brookings
begin to flood.
* ADDITIONAL DETAILS...
- At 6:15 AM CDT Tuesday the stage was 1634.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:15 AM CDT Tuesday was 1634.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.5 Tue 6 am MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
Kalin750
WGUS83 KFSD 111531
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1031 AM CDT Tue Apr 11 2023
...The Flood Warning is extended for the following rivers in South
Dakota...
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...Minnesota...
Rock River at Rock Rapids affecting Lyon County.
Big Sioux River at Brandon affecting Minnehaha, Lyon and Lincoln
Counties.
Big Sioux River near Estelline affecting Brookings and Hamlin
Counties.
Medary Creek near Medary affecting Brookings County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Sioux, Lyon and Lincoln
Counties.
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River above Hawarden affecting Sioux, Union and Lincoln
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Rock River near Hardwick affecting Rock County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Wednesday afternoon at 1215 PM CDT.
&&
SDC099-121745-
/O.EXT.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230412T0000Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Tuesday the stage was 13.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Tuesday was 13.3 feet.
- Forecast...The river will rise to 13.5 feet this evening. It
will then slowly fall Thursday and Friday. A slight rise to
near 12.9 feet could occur Friday evening. Following that it
will slowly fall but remain above flood stage.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Sioux Falls I-9 12.0 13.3 Tue 9 am 13.0 12.8 12.8
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-101-121745-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-230415T1312Z/
/BRKS2.1.SM.230411T0424Z.230413T0000Z.230414T1312Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until Saturday morning.
* IMPACTS...At 10.3 feet, 473rd Avenue north of the gauge begins to
flood.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Tuesday the stage was 9.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Tuesday was 9.9 feet.
- Forecast...The river is expected to rise to a crest of 10.4
feet tomorrow evening. It will then fall below flood stage
Friday morning.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Brookings 9.0 9.9 Tue 9 am 10.3 10.2 8.6
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SDC099-121745-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230416T0000Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230415T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until Saturday evening.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Tuesday the stage was 12.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Tuesday was 13.3 feet.
- Forecast...The river will slowly fall to 12.2 feet by
Wednesday afternoon. There could be a slight rise Thursday
evening followed by gradual falling later in the week. It
should fall below flood stage Friday evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Dell Rapids 12.0 12.4 Tue 9 am 12.2 12.4 12.1
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC119-121745-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230414T1800Z/
/RAPI4.1.SM.230411T0910Z.230412T1800Z.230413T1800Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY FRIDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until early Friday afternoon.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Tuesday the stage was 13.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 AM CDT Tuesday was 13.1 feet.
- Forecast...The river is expected to rise to a crest of 13.3
feet early tomorrow afternoon. It will then fall below flood
stage early Thursday afternoon.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Rock River
Rock Rapid 13.0 13.0 Tue 9 am 13.3 13.0 12.6
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
IAC119-SDC083-099-121745-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230411T1400Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Tuesday the stage was 1304.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Tuesday was 1304.9 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.9 Tue 9 am MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-121745-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.1.SM.230411T0703Z.230411T1400Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1644.0 feet, significant flooding of crop and pasture
land begins.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Tuesday the stage was 1644.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Tuesday was 1644.7 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1644.7 Tue 9 am MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC011-121745-
/O.CON.KFSD.FL.W.0024.000000T0000Z-000000T0000Z/
/MDYS2.1.SM.230410T1939Z.230411T0045Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Medary Creek near Medary.
* WHEN...Until further notice.
* IMPACTS...At 1588.0 feet, minor flooding of pasture lands begins.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Tuesday the stage was 1588.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 AM CDT Tuesday was 1588.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1588.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Medary Creek
Medary 1588.0 1588.3 Tue 9 am MSG MSG MSG
&&
LAT...LON 4430 9664 4427 9647 4424 9647 4428 9663
4422 9675 4418 9675 4419 9677 4423 9678
$$
SDC011-121745-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 10.5 feet, 198th Street and 199th Street between
466th and 467th avenues are flooded, as is 202nd Street between
465th and 467th avenues, and 465th Avenue between 203rd and 204th
streets.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Tuesday the stage was 10.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Tuesday was 10.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 10.4 Tue 9 am MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-121745-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Tuesday the stage was 1235.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Tuesday was 1236.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.3 Tue 9 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-121745-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230411T1015Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Tuesday the stage was 14.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Tuesday was 15.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.5 Tue 9 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
IAC149-SDC127-121745-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230413T1200Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Tuesday the stage was 16.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Tuesday was 16.5 feet.
- Forecast...The river is expected to rise to a crest of 17.6
feet Thursday morning.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Akron 16.0 16.5 Tue 9 am 17.4 17.6 17.4
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
IAC167-SDC083-127-121745-
/O.CON.KFSD.FL.W.0011.000000T0000Z-000000T0000Z/
/HWDI4.1.SM.230410T0715Z.230413T1200Z.000000T0000Z.NO/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until further notice.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Tuesday the stage was 22.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Tuesday was 22.7 feet.
- Forecast...The river is expected to rise to a crest of 23.3
feet Thursday morning.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Hawarden 20.5 22.7 Tue 9 am 23.1 23.3 22.3
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
SDC011-121745-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230411T1400Z.000000T0000Z.NR/
1031 AM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring. This approaches the flood of
record.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1635.0 feet, township roads northeast of Brookings
begin to flood.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Tuesday the stage was 1634.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 AM CDT Tuesday was 1634.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.8 Tue 9 am MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
Masters785
WGUS83 KFSD 120300
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1000 PM CDT Tue Apr 11 2023
...The Flood Warning continues for the following rivers in South
Dakota...Iowa...Minnesota...
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Lincoln, Union and Sioux
Counties.
Big Sioux River at Brandon affecting Lincoln, Minnehaha and Lyon
Counties.
Medary Creek near Medary affecting Brookings County.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lincoln, Sioux and Lyon
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Rock River near Hardwick affecting Rock County.
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Rock River at Rock Rapids affecting Lyon County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued by Wednesday afternoon.
&&
IAC149-SDC127-130500-
/O.EXT.KFSD.FL.W.0015.000000T0000Z-230417T1200Z/
/AKRI4.1.SM.230411T0500Z.230413T1200Z.230416T1200Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL MONDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until Monday morning.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 17.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Tuesday was 17.2 feet.
- Forecast...The river is expected to rise to a crest of 17.3
feet Thursday morning. It will then fall below flood stage
Sunday morning.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Akron 16.0 17.2 Tue 9 pm 17.2 17.3 16.9
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-130500-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-230416T1200Z/
/BRKS2.1.SM.230411T0424Z.230412T0600Z.230415T1200Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until Sunday morning.
* IMPACTS...At 10.3 feet, 473rd Avenue north of the gauge begins to
flood.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Tuesday the stage was 10.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Tuesday was 10.4 feet.
- Forecast...The river is expected to rise to a crest of 10.4
feet just after midnight tonight. It will then fall below
flood stage Saturday morning.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Brookings 9.0 10.4 Tue 8 pm 10.3 9.8 9.3
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SDC099-130500-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230415T0900Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230414T0900Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Saturday morning.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 11.8 feet.
- Forecast...The river is expected to rise above flood stage
Thursday morning to a crest of 12.1 feet early Thursday
afternoon. It will then fall below flood stage early Friday
morning.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Dell Rapids 12.0 11.8 Tue 9 pm 11.9 12.1 11.7
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-130500-
/O.EXT.KFSD.FL.W.0011.000000T0000Z-230417T1200Z/
/HWDI4.1.SM.230410T0715Z.230413T1200Z.230416T1200Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL MONDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until Monday morning.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 22.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Tuesday was 22.8 feet.
- Forecast...The river is expected to rise to a crest of 22.9
feet Thursday morning. It will then fall below flood stage
Sunday morning.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Hawarden 20.5 22.7 Tue 9 pm 22.7 22.7 21.5
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-130500-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230415T1200Z/
/RAPI4.1.SM.230411T0910Z.230412T1800Z.230414T1200Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until Saturday morning.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Tuesday the stage was 13.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Tuesday was 13.2 feet.
- Forecast...The river is expected to rise to a crest of 13.4
feet early tomorrow afternoon. It will then fall below flood
stage Friday morning.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Rock River
Rock Rapid 13.0 13.2 Tue 9 pm 13.4 13.2 12.8
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
IAC119-SDC083-099-130500-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0200Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 1305.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Tuesday was 1305.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1305.5 Tue 9 pm MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-130500-
/O.CON.KFSD.FL.W.0024.000000T0000Z-000000T0000Z/
/MDYS2.1.SM.230410T1939Z.230411T0045Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Medary Creek near Medary.
* WHEN...Until further notice.
* IMPACTS...At 1588.0 feet, minor flooding of pasture lands begins.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Tuesday the stage was 1588.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Tuesday was 1588.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1588.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Medary Creek
Medary 1588.0 1588.2 Tue 9 pm MSG MSG MSG
&&
LAT...LON 4430 9664 4427 9647 4424 9647 4428 9663
4422 9675 4418 9675 4419 9677 4423 9678
$$
SDC099-130500-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 13.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Tuesday was 13.4 feet.
- Forecast...The river is expected to fall to 12.2 feet Sunday
evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Big Sioux River
Sioux Falls I-9 12.0 13.3 Tue 9 pm 12.7 12.5 12.7
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-130500-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.1.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 9.5 feet, the right bank overflows flooding
agricultural lands for as much as 1/4 mile.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Tuesday the stage was 9.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Tuesday was 10.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 9.3 Tue 8 pm MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-130500-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Tuesday the stage was 1235.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Tuesday was 1235.3 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.1 Tue 9 pm MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-130500-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230411T1015Z.000000T0000Z.NO/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Tuesday the stage was 14.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Tuesday was 14.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.8 Tue 9 pm MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
SDC011-130500-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230411T1400Z.000000T0000Z.NR/
1000 PM CDT Tue Apr 11 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring. This approaches the flood of
record.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1634.0 feet, agricultural flooding begins northeast
of Brookings.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Tuesday the stage was 1634.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Tuesday was 1634.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.1 Tue 9 pm MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
SG217
WGUS83 KFSD 121533
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1033 AM CDT Wed Apr 12 2023
...The Flood Warning is extended for the following rivers in Iowa...
South Dakota...
Big Sioux River at Akron affecting Plymouth and Union Counties.
...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in South Dakota...
Iowa...
Big Sioux River near Brookings affecting Brookings and Moody
Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Sioux, Lincoln and Union
Counties.
Rock River at Rock Rapids affecting Lyon County.
...The Flood Warning continues for the following rivers in South
Dakota...Iowa...Minnesota...
James River at Huron affecting Beadle County.
Big Sioux River near Richland affecting Plymouth and Union
Counties.
Big Sioux River at Brandon affecting Lyon, Minnehaha and Lincoln
Counties.
Big Sioux River near Estelline affecting Brookings and Hamlin
Counties.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Canton affecting Sioux, Lyon and Lincoln
Counties.
Sixmile Creek near Brookings affecting Brookings County.
Rock River near Hardwick affecting Rock County.
Redwood River at Russell affecting Lyon County.
...The Flood Warning is cancelled for the following rivers in South
Dakota...
Medary Creek near Medary affecting Brookings County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued this morning at 1130 AM CDT.
&&
SDC011-121645-
/O.CAN.KFSD.FL.W.0024.000000T0000Z-230412T1533Z/
/MDYS2.1.SM.230410T1939Z.230411T0045Z.230412T1245Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Medary Creek near Medary.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Wednesday the stage was 1588.0 feet.
- Forecast...The river will remain near flood stage today...and
then slowly fall the rest of this week.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Medary Creek
Medary 1588.0 1588.0 Wed 9 am MSG MSG MSG
&&
LAT...LON 4430 9664 4427 9647 4424 9647 4428 9663
4422 9675 4418 9675 4419 9677 4423 9678
$$
IAC149-SDC127-131745-
/O.EXT.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230413T1800Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 17.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 17.5 feet.
- Forecast...The river is expected to rise to a crest of 17.8
feet early tomorrow afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Akron 16.0 17.5 Wed 10 am 17.8 17.7 17.1
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-131745-
/O.EXT.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BRKS2.2.SM.230411T0424Z.230413T0000Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 11.0 feet, some farm outbuildings begin to flood.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Wednesday the stage was 10.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Wednesday was 10.6 feet.
- Forecast...The river will rise to 10.9 feet this evening. It
will then fall Friday evening. It will rise to 10.7 feet
early Sunday afternoon. It will then fall again but remain
above flood stage.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Brookings 9.0 10.6 Wed 9 am 10.4 10.1 10.4
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SDC099-131745-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230415T1800Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230414T1800Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SATURDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Saturday afternoon.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Wednesday the stage was 11.6 feet.
- Forecast...The river will rise above flood stage tomorrow
morning to 12.2 feet tomorrow evening. It will then fall
below flood stage to near 11.7 feet early Friday afternoon.
Slight rises and falls of 1 or 2 tenths of a foot are then
forecast through Sunday.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Dell Rapids 12.0 11.6 Wed 9 am 12.2 12.0 11.7
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-131745-
/O.EXT.KFSD.FL.W.0011.000000T0000Z-230418T0600Z/
/HWDI4.1.SM.230410T0715Z.230413T0600Z.230417T0600Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY TUESDAY
MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until early Tuesday morning.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Wednesday the stage was 22.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Wednesday was 22.7 feet.
- Forecast...The river is expected to rise to a crest of 22.8
feet just after midnight tonight. It will then fall below
flood stage early Monday morning.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Hawarden 20.5 22.5 Wed 9 am 22.8 22.0 21.2
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-131745-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230416T2100Z/
/RAPI4.1.SM.230411T0910Z.230413T1800Z.230415T2100Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SUNDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until Sunday afternoon.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Wednesday the stage was 13.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 AM CDT Wednesday was 13.3 feet.
- Forecast...The river is expected to rise to a crest of 13.8
feet early tomorrow afternoon. It will then fall below flood
stage Saturday afternoon.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Rock River
Rock Rapid 13.0 13.2 Wed 9 am 13.8 13.5 13.1
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
MNC083-131745-
/O.CON.KFSD.FL.W.0029.000000T0000Z-000000T0000Z/
/RUSM5.1.SM.230412T0804Z.230412T1145Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Redwood River at Russell.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the right bank overflows flooding some low
lying areas.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Wednesday the stage was 14.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Wednesday was 14.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Redwood River
Russell 14.0 14.5 Wed 9 am MSG MSG MSG
&&
LAT...LON 4440 9590 4438 9587 4437 9590 4433 9590
4430 9594 4424 9600 4426 9604 4434 9596
4438 9594
$$
IAC149-SDC127-131745-
/O.CON.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/BSRS2.1.SM.230412T0537Z.230412T1500Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Richland.
* WHEN...Until further notice.
* IMPACTS...At 1117.0 feet, lower pasture lands begin to flood, and
the Millsite Access is flooded.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 1117.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 1117.3 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1117.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Richland 1117.0 1117.3 Wed 10 am MSG MSG MSG
&&
LAT...LON 4280 9664 4277 9657 4273 9661 4267 9653
4263 9659 4272 9670
$$
SDC005-131745-
/O.CON.KFSD.FL.W.0027.000000T0000Z-000000T0000Z/
/HURS2.2.SM.230413T2248Z.230419T1200Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...James River at Huron.
* WHEN...Until further notice.
* IMPACTS...At 15.0 feet, approximately 16000 acres of agricultural
land around Huron will be flooded.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Wednesday the stage was 10.8 feet.
- Forecast...The river will fall to 10.3 feet just after
midnight tonight. It will then rise above flood stage
tomorrow afternoon to 13.8 feet Saturday morning. It will
fall to 12.2 feet Sunday evening then rise again.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
James River
Huron 11.0 10.8 Wed 9 am 10.6 12.8 13.6
&&
LAT...LON 4463 9832 4463 9820 4445 9806 4436 9815
4420 9807 4420 9819 4437 9826 4445 9818
$$
IAC119-SDC083-099-131745-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0345Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 1305.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 1305.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1305.1 Wed 10 am MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-131745-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.2.SM.230411T0703Z.230412T1500Z.000000T0000Z.NR/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring. This approaches the flood
of record.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1646.0 feet, water reaches the bottom of the bridge
on 192nd Street.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 1646.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 1646.3 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1646.3 Wed 10 am MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC099-131745-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 12.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 13.3 feet.
- Forecast...The river is expected to fall to 12.2 feet Monday
morning.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Sioux Falls I-9 12.0 12.8 Wed 10 am 12.2 12.4 12.4
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
IAC119-167-SDC083-131745-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 10:00 AM CDT Wednesday the stage was 1235.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:00 AM CDT Wednesday was 1235.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.5 Wed 10 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-131745-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230412T0900Z.000000T0000Z.NO/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Wednesday the stage was 15.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Wednesday was 15.4 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 15.1 Wed 9 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
SDC011-131745-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/SMCS2.1.SM.230409T0121Z.230412T1015Z.000000T0000Z.NR/
1033 AM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring. This approaches the flood of
record.
* WHERE...Sixmile Creek near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 1635.0 feet, township roads northeast of Brookings
begin to flood.
* ADDITIONAL DETAILS...
- At 9:15 AM CDT Wednesday the stage was 1634.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 AM CDT Wednesday was 1635.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1634.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1634.7 Wed 9 am MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
Masters068
WGUS83 KFSD 130302
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1002 PM CDT Wed Apr 12 2023
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...
Big Sioux River above Hawarden affecting Sioux, Union and Lincoln
Counties.
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...Minnesota...
Rock River at Rock Rapids affecting Lyon County.
James River at Huron affecting Beadle County.
Big Sioux River near Richland affecting Plymouth and Union
Counties.
Big Sioux River at Brandon affecting Lincoln, Minnehaha and Lyon
Counties.
Big Sioux River near Estelline affecting Hamlin and Brookings
Counties.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Sioux, Lyon and Lincoln
Counties.
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Big Sioux River below Dell Rapids affecting Minnehaha County.
Rock River near Hardwick affecting Rock County.
Redwood River at Russell affecting Lyon County.
...The Flood Warning is cancelled for the following rivers in South
Dakota...
Sixmile Creek near Brookings affecting Brookings County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Additional information is available at www.weather.gov.
The next statement will be issued tomorrow morning at 1100 AM CDT.
&&
SDC011-130415-
/O.CAN.KFSD.FL.W.0008.000000T0000Z-230413T0302Z/
/SMCS2.1.SM.230409T0121Z.230412T1015Z.230412T2120Z.NR/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Sixmile Creek near Brookings.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Wednesday the stage was 1633.6 feet.
- Forecast...No forecast is available for this location.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Sixmile Creek
Brookings 1634.0 1633.6 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4446 9667 4444 9663 4433 9674 4428 9685
4431 9685 4436 9676
$$
IAC167-SDC083-127-140515-
/O.EXT.KFSD.FL.W.0011.000000T0000Z-230418T1200Z/
/HWDI4.1.SM.230410T0715Z.230413T0230Z.230417T1200Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL TUESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until Tuesday morning.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Wednesday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Wednesday was 22.8 feet.
- Forecast...The river is expected to fall below flood stage
Monday morning and continue falling to 20.1 feet Monday
evening.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Hawarden 20.5 22.8 Wed 9 pm 22.4 21.7 21.2
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-140515-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230416T1800Z/
/RAPI4.1.SM.230411T0910Z.230413T1200Z.230415T1800Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SUNDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until early Sunday afternoon.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Wednesday the stage was 13.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Wednesday was 13.2 feet.
- Forecast...The river is expected to rise to a crest of 13.5
feet tomorrow morning. It will then fall below flood stage
early Saturday afternoon.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Rock River
Rock Rapid 13.0 13.2 Wed 9 pm 13.5 13.3 12.9
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
MNC083-140515-
/O.CON.KFSD.FL.W.0029.000000T0000Z-000000T0000Z/
/RUSM5.1.SM.230412T0804Z.230413T0000Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Redwood River at Russell.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the right bank overflows flooding some low
lying areas.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Wednesday the stage was 14.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Wednesday was 14.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Redwood River
Russell 14.0 14.6 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4440 9590 4438 9587 4437 9590 4433 9590
4430 9594 4424 9600 4426 9604 4434 9596
4438 9594
$$
IAC149-SDC127-140515-
/O.CON.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/BSRS2.1.SM.230412T0537Z.230413T0200Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Richland.
* WHEN...Until further notice.
* IMPACTS...At 1117.0 feet, lower pasture lands begin to flood, and
the Millsite Access is flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 1117.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 1117.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1117.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Richland 1117.0 1117.6 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4280 9664 4277 9657 4273 9661 4267 9653
4263 9659 4272 9670
$$
SDC005-140515-
/O.CON.KFSD.FL.W.0027.000000T0000Z-000000T0000Z/
/HURS2.3.SM.230412T1730Z.230415T0600Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and major flooding is forecast.
* WHERE...James River at Huron.
* WHEN...Until further notice.
* IMPACTS...At 16.0 feet, 3rd Street, Highway 14 Business Loop
Bypass, in Huron will begin flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 11.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 11.5 feet.
- Forecast...The river is expected to rise to a crest of 15.9
feet early Saturday morning.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
James River
Huron 11.0 11.5 Wed 9 pm 14.2 15.8 15.2
&&
LAT...LON 4463 9832 4463 9820 4445 9806 4436 9815
4420 9807 4420 9819 4437 9826 4445 9818
$$
IAC119-SDC083-099-140515-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0345Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 1304.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 1305.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.7 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-140515-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.2.SM.230411T0703Z.230412T1600Z.000000T0000Z.NR/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring. This approaches the flood
of record.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1646.0 feet, water reaches the bottom of the bridge
on 192nd Street.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 1646.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 1646.3 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1646.0 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC099-140515-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 12.8 feet.
- Forecast...The river is expected to rise to a crest of 12.5
feet Friday evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Sioux Falls I-9 12.0 12.7 Wed 9 pm 12.4 12.5 12.3
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-140515-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 9.5 feet, the right bank overflows flooding
agricultural lands for as much as 1/4 mile.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Wednesday the stage was 9.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Wednesday was 9.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 9.8 Wed 8 pm MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-140515-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 1235.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 1235.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.5 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-140515-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230412T0900Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Wednesday the stage was 14.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Wednesday was 15.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.9 Wed 9 pm MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
IAC149-SDC127-140515-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230413T0600Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Wednesday the stage was 17.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Wednesday was 17.6 feet.
- Forecast...The river is expected to rise to a crest of 17.7
feet just after midnight tonight.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Akron 16.0 17.6 Wed 9 pm 17.7 17.6 17.0
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-140515-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BRKS2.2.SM.230411T0424Z.230412T2230Z.000000T0000Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 11.0 feet, some farm outbuildings begin to flood.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Wednesday the stage was 10.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Wednesday was 10.8 feet.
- Forecast...The river is expected to fall to 9.7 feet Monday
evening.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Brookings 9.0 10.8 Wed 8 pm 10.3 10.1 10.4
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SDC099-140515-
/O.CON.KFSD.FL.W.0012.000000T0000Z-230415T1800Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230414T1800Z.NO/
1002 PM CDT Wed Apr 12 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL EARLY SATURDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Saturday afternoon.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Wednesday the stage was 11.8 feet.
- Forecast...The river will rise above flood stage tomorrow
morning to 12.2 feet tomorrow evening. It will then fall
below flood stage early Friday afternoon to 11.6 feet early
Sunday morning. It will rise to 11.7 feet Monday morning. It
will then fall again and remain below flood stage.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Big Sioux River
Dell Rapids 12.0 11.8 Wed 9 pm 12.2 11.9 11.6
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
Weisser842
WGUS83 KFSD 131128
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
628 AM CDT Thu Apr 13 2023
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...Minnesota...
Big Sioux River below Dell Rapids affecting Minnehaha County.
Rock River at Rock Rapids affecting Lyon County.
West Fork Des Moines River near Avoca affecting Cottonwood and
Murray Counties.
...The Flood Warning continues for the following rivers in South
Dakota...Iowa...Minnesota...
James River at Huron affecting Beadle County.
James River near Forestburg affecting Sanborn County.
Big Sioux River near Egan affecting Moody County.
Big Sioux River near Richland affecting Union and Plymouth
Counties.
Big Sioux River at Brandon affecting Lyon, Lincoln and Minnehaha
Counties.
Big Sioux River near Estelline affecting Hamlin and Brookings
Counties.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lyon, Lincoln and Sioux
Counties.
Big Sioux River at Akron affecting Union and Plymouth Counties.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Big Sioux River above Hawarden affecting Union, Lincoln and Sioux
Counties.
Rock River near Hardwick affecting Rock County.
Redwood River at Russell affecting Lyon County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued by Thursday afternoon.
&&
MNC033-101-141330-
/O.EXT.KFSD.FL.W.0030.000000T0000Z-230418T0000Z/
/AVOM5.1.SM.000000T0000Z.230414T0000Z.230417T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...West Fork Des Moines River near Avoca.
* WHEN...Until Monday evening.
* IMPACTS...At 1426.0 feet, significant amounts of crop and pasture
land are flooded.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Thursday the stage was 1425.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Thursday was 1425.3 feet.
- Forecast...The river is expected to rise to a crest of 1425.6
feet this evening. It will then fall below flood stage Sunday
evening.
- Flood stage is 1425.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
West Fork Des Moines River
Avoca 1425.0 1425.3 Thu 5 am 1425. 1425.
1425.
&&
LAT...LON 4407 9570 4410 9566 4384 9531 4383 9537
$$
SDC099-141330-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230416T0000Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230415T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SATURDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until Saturday evening.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Thursday the stage was 11.9 feet.
- Forecast...The river is expected to rise above flood stage
this morning to a crest of 12.2 feet this evening. It will
then slowly fall below flood stage tomorrow evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Dell Rapids 12.0 11.9 Thu 5 am 12.1 11.8 11.4
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC119-141330-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230417T0000Z/
/RAPI4.1.SM.230411T0910Z.230414T0000Z.230416T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SUNDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until Sunday evening.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 5:15 AM CDT Thursday the stage was 13.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:15 AM CDT Thursday was 13.3 feet.
- Forecast...The river is expected to rise to a crest of 13.6
feet this evening. It will then fall below flood stage
Saturday evening.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Rock River
Rock Rapid 13.0 13.3 Thu 5 am 13.6 13.3 12.7
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC101-141330-
/O.CON.KFSD.FL.W.0031.000000T0000Z-000000T0000Z/
/EGAS2.1.SM.230412T2337Z.230413T1100Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Egan.
* WHEN...Until further notice.
* IMPACTS...At 1516.5 feet, flooding begins to affect agricultural
lands around Egan.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 1516.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 1516.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1516.5 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Egan 1516.5 1516.8 Thu 6 am MSG MSG MSG
&&
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673
$$
MNC083-141330-
/O.CON.KFSD.FL.W.0029.000000T0000Z-000000T0000Z/
/RUSM5.1.SM.230412T0804Z.230413T0000Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Redwood River at Russell.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the right bank overflows flooding some low
lying areas.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Thursday the stage was 14.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Thursday was 14.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Redwood River
Russell 14.0 14.2 Thu 5 am MSG MSG MSG
&&
LAT...LON 4440 9590 4438 9587 4437 9590 4433 9590
4430 9594 4424 9600 4426 9604 4434 9596
4438 9594
$$
IAC149-SDC127-141330-
/O.CON.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/BSRS2.1.SM.230412T0537Z.230413T1100Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Richland.
* WHEN...Until further notice.
* IMPACTS...At 1117.0 feet, lower pasture lands begin to flood, and
the Millsite Access is flooded.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 1117.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 1117.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1117.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Richland 1117.0 1117.8 Thu 6 am MSG MSG MSG
&&
LAT...LON 4280 9664 4277 9657 4273 9661 4267 9653
4263 9659 4272 9670
$$
SDC005-141330-
/O.CON.KFSD.FL.W.0027.000000T0000Z-000000T0000Z/
/HURS2.3.SM.230412T1730Z.230415T0000Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and major flooding is forecast.
* WHERE...James River at Huron.
* WHEN...Until further notice.
* IMPACTS...At 16.0 feet, 3rd Street, Highway 14 Business Loop
Bypass, in Huron will begin flooding.
* ADDITIONAL DETAILS...
- At 5:00 AM CDT Thursday the stage was 11.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:00 AM CDT Thursday was 11.9 feet.
- Forecast...The river is expected to rise to a crest of 15.9
feet tomorrow evening. It may then fall for a period this
weekend before rising again next week.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
James River
Huron 11.0 11.9 Thu 5 am 15.3 15.8 14.6
&&
LAT...LON 4463 9832 4463 9820 4445 9806 4436 9815
4420 9807 4420 9819 4437 9826 4445 9818
$$
IAC119-SDC083-099-141330-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0345Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 1304.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 1304.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.5 Thu 6 am MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-141330-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.2.SM.230411T0703Z.230412T1600Z.000000T0000Z.NR/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring. This approaches the flood
of record.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1646.0 feet, water reaches the bottom of the bridge
on 192nd Street.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 1645.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 1646.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1645.8 Thu 6 am MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC099-141330-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 12.7 feet.
- Forecast...The river is expected to rise to remain relatively
steady for the next couple of days before falling later this
weekend.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Sioux Falls I-9 12.0 12.7 Thu 6 am 12.7 12.7 12.5
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-141330-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 10.5 feet, 198th Street and 199th Street between
466th and 467th avenues are flooded, as is 202nd Street between
465th and 467th avenues, and 465th Avenue between 203rd and 204th
streets.
* ADDITIONAL DETAILS...
- At 5:45 AM CDT Thursday the stage was 10.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:45 AM CDT Thursday was 10.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 10.0 Thu 5 am MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-141330-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 1235.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 1235.6 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.3 Thu 6 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-141330-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230412T0900Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Thursday the stage was 14.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Thursday was 15.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.3 Thu 5 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
IAC149-SDC127-141330-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230414T0000Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 6:00 AM CDT Thursday the stage was 17.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 6:00 AM CDT Thursday was 17.7 feet.
- Forecast...The river is expected to rise to a crest of 17.8
feet this evening before slowly falling later this weekend.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Akron 16.0 17.7 Thu 6 am 17.7 17.3 16.8
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-141330-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BRKS2.2.SM.230411T0424Z.230413T1200Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 11.0 feet, some farm outbuildings begin to flood.
* ADDITIONAL DETAILS...
- At 5:45 AM CDT Thursday the stage was 11.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:45 AM CDT Thursday was 11.0 feet.
- Forecast...The river is expected to rise to a crest just
above 11.0 feet this morning.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Brookings 9.0 11.0 Thu 5 am 10.4 10.0 10.0
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
IAC167-SDC083-127-141330-
/O.CON.KFSD.FL.W.0011.000000T0000Z-230418T1200Z/
/HWDI4.1.SM.230410T0715Z.230413T1030Z.230417T1200Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL TUESDAY
MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until Tuesday morning.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 5:30 AM CDT Thursday the stage was 22.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 5:30 AM CDT Thursday was 22.9 feet.
- Forecast...The river is expected to slowly fall into the
weekend, falling below flood stage Monday.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Hawarden 20.5 22.9 Thu 5 am 22.3 21.7 21.0
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
SDC111-141330-
/O.CON.KFSD.FL.W.0032.230415T0300Z-000000T0000Z/
/FORS2.2.SM.230415T0300Z.230420T0600Z.000000T0000Z.NO/
628 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT FROM FRIDAY EVENING
UNTIL FURTHER NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...James River near Forestburg.
* WHEN...From Friday evening until further notice.
* IMPACTS...At 14.0 feet, many of the county and township roads
along the river are under water.
* ADDITIONAL DETAILS...
- At 5:15 AM CDT Thursday the stage was 9.6 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening and continue rising to 14.4 feet early
Thursday morning. Additional rises are possible thereafter.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
James River
Forestburg 12.0 9.6 Thu 5 am 10.8 12.6 13.6
&&
LAT...LON 4420 9819 4420 9807 4401 9804 4391 9794
4385 9794 4385 9806 4390 9806 4398 9814
$$
Kalin501
WGUS83 KFSD 131429
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
929 AM CDT Thu Apr 13 2023
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Union, Sioux and Lincoln
Counties.
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...Minnesota...
Rock River at Rock Rapids affecting Lyon County.
Big Sioux River near Egan affecting Moody County.
Big Sioux River near Richland affecting Plymouth and Union
Counties.
Big Sioux River at Brandon affecting Lyon, Lincoln and Minnehaha
Counties.
Big Sioux River near Estelline affecting Hamlin and Brookings
Counties.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River near Canton affecting Lyon, Sioux and Lincoln
Counties.
Big Sioux River at Akron affecting Plymouth and Union Counties.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
Rock River near Hardwick affecting Rock County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued Friday morning at 1115 AM CDT.
&&
SDC099-141630-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-230417T1800Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.230416T1800Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY MONDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until early Monday afternoon.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Thursday the stage was 11.9 feet.
- Forecast...The river is expected to rise above flood stage
late this morning to a crest of 12.2 feet this evening. It
will then fall below flood stage early Sunday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Dell Rapids 12.0 11.9 Thu 8 am 12.2 12.1 12.0
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-141630-
/O.EXT.KFSD.FL.W.0011.000000T0000Z-230418T1800Z/
/HWDI4.1.SM.230410T0715Z.230413T1300Z.230417T1800Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY TUESDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until early Tuesday afternoon.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Thursday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Thursday was 22.9 feet.
- Forecast...The river is expected to fall below flood stage
early Monday afternoon and continue falling to 20.1 feet
Tuesday morning.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Hawarden 20.5 22.8 Thu 8 am 22.5 21.7 21.1
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-141630-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230416T1200Z/
/RAPI4.1.SM.230411T0910Z.230413T1215Z.230415T1200Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until Sunday morning.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 8:15 AM CDT Thursday the stage was 13.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:15 AM CDT Thursday was 13.3 feet.
- Forecast...The river is expected to remain near a crest of
13.3 feet this afternoon. It will then fall below flood stage
Saturday morning.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Rock River
Rock Rapids 13.0 13.3 Thu 8 am 13.3 13.0 12.5
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC101-141630-
/O.CON.KFSD.FL.W.0031.000000T0000Z-000000T0000Z/
/EGAS2.1.SM.230412T2337Z.230413T1400Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Egan.
* WHEN...Until further notice.
* IMPACTS...At 1516.5 feet, flooding begins to affect agricultural
lands around Egan.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 1516.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 1516.9 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1516.5 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Egan 1516.5 1516.9 Thu 9 am MSG MSG MSG
&&
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673
$$
IAC149-SDC127-141630-
/O.CON.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/BSRS2.1.SM.230412T0537Z.230413T1400Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Richland.
* WHEN...Until further notice.
* IMPACTS...At 1117.0 feet, lower pasture lands begin to flood, and
the Millsite Access is flooded.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 1117.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 1117.9 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1117.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Richland 1117.0 1117.9 Thu 9 am MSG MSG MSG
&&
LAT...LON 4280 9664 4277 9657 4273 9661 4267 9653
4263 9659 4272 9670
$$
IAC119-SDC083-099-141630-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0345Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 1304.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 1304.7 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.5 Thu 9 am MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-141630-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.2.SM.230411T0703Z.230412T1600Z.000000T0000Z.NR/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring. This approaches the flood
of record.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1646.0 feet, water reaches the bottom of the bridge
on 192nd Street.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 1645.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 1646.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1645.8 Thu 9 am MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC099-141630-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 12.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 12.7 feet.
- Forecast...The river is expected to rise to a crest of 13.0
feet early tomorrow afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Sioux Falls I-90 12.0 12.7 Thu 9 am 12.9 13.0 13.0
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-141630-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 10.5 feet, 198th Street and 199th Street between
466th and 467th avenues are flooded, as is 202nd Street between
465th and 467th avenues, and 465th Avenue between 203rd and 204th
streets.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Thursday the stage was 10.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM CDT Thursday was 10.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 10.1 Thu 8 am MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC119-167-SDC083-141630-
/O.CON.KFSD.FL.W.0021.000000T0000Z-000000T0000Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Canton.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, flooding begins to affect significant
amounts of crop and pasture land.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 1235.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 1235.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1235.2 Thu 9 am MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-141630-
/O.CON.KFSD.FL.W.0019.000000T0000Z-000000T0000Z/
/HRDM5.1.SM.230410T0510Z.230412T0900Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Rock River near Hardwick.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, the lower left bank overflows flooding low
lying agricultural lands.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Thursday the stage was 14.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Thursday was 14.9 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 14.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 14.0 Thu 8 am MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
IAC149-SDC127-141630-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230414T0000Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Thursday the stage was 17.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Thursday was 17.7 feet.
- Forecast...The river is expected to rise to a crest of 17.8
feet this evening.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Akron 16.0 17.7 Thu 9 am 17.8 17.5 16.9
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-141630-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BRKS2.2.SM.230411T0424Z.230414T0000Z.000000T0000Z.NO/
929 AM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 11.0 feet, some farm outbuildings begin to flood.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Thursday the stage was 11.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM CDT Thursday was 11.0 feet.
- Forecast...The river is expected to rise to a crest of 11.1
feet this evening.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Brookings 9.0 11.0 Thu 8 am 11.0 10.7 10.5
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
Chapman230
WGUS83 KFSD 140301
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1001 PM CDT Thu Apr 13 2023
...The Flood Warning continues for the following rivers in South
Dakota...Iowa...Minnesota...
James River at Huron affecting Beadle County.
James River near Forestburg affecting Sanborn County.
Rock River at Rock Rapids affecting Lyon County.
Big Sioux River near Egan affecting Moody County.
Big Sioux River near Richland affecting Union and Plymouth
Counties.
Big Sioux River at Brandon affecting Lyon, Minnehaha and Lincoln
Counties.
Big Sioux River near Estelline affecting Brookings and Hamlin
Counties.
Big Sioux River at Sioux Falls I-90 affecting Minnehaha County.
Big Sioux River near Bruce affecting Brookings County.
Big Sioux River at Akron affecting Union and Plymouth Counties.
Big Sioux River near Brookings affecting Moody and Brookings
Counties.
West Fork Des Moines River near Avoca affecting Cottonwood and
Murray Counties.
...The Flood Warning is extended for the following rivers in South
Dakota...Iowa...
Big Sioux River below Dell Rapids affecting Minnehaha County.
Big Sioux River above Hawarden affecting Union, Sioux and Lincoln
Counties.
...The Flood Warning is cancelled for the following rivers in South
Dakota...Iowa...Minnesota...
Big Sioux River near Canton affecting Lyon, Sioux and Lincoln
Counties.
Rock River near Hardwick affecting Rock County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Additional information is available at www.weather.gov.
The next statement will be issued Thursday morning.
&&
IAC119-167-SDC083-140415-
/O.CAN.KFSD.FL.W.0021.000000T0000Z-230414T0301Z/
/CBSS2.1.SM.230410T0837Z.230411T0200Z.230413T1603Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Big Sioux River near Canton.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 1234.4 feet.
- Forecast...No forecast is available for this location.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Canton 1235.0 1234.4 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4344 9662 4344 9657 4340 9650 4329 9651
4326 9653 4326 9661 4331 9661 4331 9655
4338 9655
$$
MNC133-140415-
/O.CAN.KFSD.FL.W.0019.000000T0000Z-230414T0301Z/
/HRDM5.1.SM.230410T0510Z.230412T0900Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT IS CANCELLED...
The Flood Warning is cancelled for
the Rock River near Hardwick.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Thursday the stage was 12.7 feet.
- Forecast...No forecast is available for this location.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Rock River
Hardwick 14.0 12.7 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4381 9614 4381 9610 4374 9612 4371 9614
4368 9613 4370 9617 4372 9618
$$
SDC005-150515-
/O.EXT.KFSD.FL.W.0027.000000T0000Z-230421T0600Z/
/HURS2.2.SM.230412T1730Z.230414T1800Z.230420T0600Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FRIDAY, APRIL 21...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...James River at Huron.
* WHEN...Until Friday, April 21.
* IMPACTS...At 14.0 feet, numerous county and township roads in
Beadle County will be flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 12.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 12.6 feet.
- Forecast...The river is expected to rise to a crest of 14.0
feet early tomorrow afternoon. It will then fall below flood
stage early Thursday morning.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
James River
Huron 11.0 12.5 Thu 9 pm 14.0 12.2 11.2
&&
LAT...LON 4463 9832 4463 9820 4445 9806 4436 9815
4420 9807 4420 9819 4437 9826 4445 9818
$$
SDC099-150515-
/O.EXT.KFSD.FL.W.0012.000000T0000Z-000000T0000Z/
/DERS2.1.SM.230409T2243Z.230411T0315Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River below Dell Rapids.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, agricultural lands along the lower banks
of the river begin to flood.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Thursday the stage was 12.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Thursday was 12.1 feet.
- Forecast...The river is expected to rise to a crest of 12.8
feet Saturday evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Dell Rapids 12.0 12.1 Thu 9 pm 12.5 12.8 12.8
&&
LAT...LON 4381 9676 4381 9671 4373 9672 4367 9671
4367 9676 4373 9678
$$
IAC167-SDC083-127-150515-
/O.EXT.KFSD.FL.W.0011.000000T0000Z-000000T0000Z/
/HWDI4.1.SM.230410T0715Z.230413T1300Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River above Hawarden.
* WHEN...Until further notice.
* IMPACTS...At 24.0 feet, some farm houses on the South Dakota side
of the river are isolated by high water.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Thursday the stage was 22.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Thursday was 22.9 feet.
- Forecast...The river is expected to fall to 20.7 feet Tuesday
evening.
- Flood stage is 20.5 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Hawarden 20.5 22.8 Thu 9 pm 22.2 21.7 21.3
&&
LAT...LON 4308 9649 4308 9641 4303 9646 4291 9649
4291 9659 4296 9655 4306 9654
$$
IAC119-150515-
/O.EXT.KFSD.FL.W.0009.000000T0000Z-230415T1800Z/
/RAPI4.1.SM.230411T0910Z.230413T1215Z.230414T1800Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT UNTIL EARLY SATURDAY
AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Rock River at Rock Rapids.
* WHEN...Until early Saturday afternoon.
* IMPACTS...At 13.0 feet, the lower banks on the left side of the
river will begin flooding.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Thursday the stage was 13.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Thursday was 13.3 feet.
- Forecast...The river is expected to fall below flood stage
early tomorrow afternoon and continue falling to 11.1 feet
Tuesday evening.
- Flood stage is 13.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Rock River
Rock Rapid 13.0 13.2 Thu 9 pm 12.9 12.5 11.9
&&
LAT...LON 4350 9621 4350 9616 4338 9612 4327 9622
4327 9628 4338 9618
$$
SDC111-150515-
/O.EXT.KFSD.FL.W.0032.230414T2000Z-230421T1800Z/
/FORS2.1.SM.230414T2000Z.230416T1800Z.230420T1800Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT NOW IN EFFECT FROM FRIDAY AFTERNOON TO
FRIDAY, APRIL 21...
* WHAT...Minor flooding is forecast.
* WHERE...James River near Forestburg.
* WHEN...From Friday afternoon to Friday, April 21.
* IMPACTS...At 14.0 feet, many of the county and township roads
along the river are under water.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Thursday the stage was 10.9 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow afternoon to a crest of 13.2 feet early Sunday
afternoon. It will then fall below flood stage early Thursday
afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
James River
Forestburg 12.0 10.9 Thu 9 pm 12.2 12.9 13.2
&&
LAT...LON 4420 9819 4420 9807 4401 9804 4391 9794
4385 9794 4385 9806 4390 9806 4398 9814
$$
SDC101-150515-
/O.CON.KFSD.FL.W.0031.000000T0000Z-000000T0000Z/
/EGAS2.1.SM.230412T2337Z.230413T2015Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Egan.
* WHEN...Until further notice.
* IMPACTS...At 1516.5 feet, flooding begins to affect agricultural
lands around Egan.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 1517.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 1517.0 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1516.5 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Egan 1516.5 1517.0 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4404 9666 4404 9658 4394 9667 4394 9673
$$
MNC033-101-150515-
/O.CON.KFSD.FL.W.0030.000000T0000Z-230418T0000Z/
/AVOM5.1.SM.000000T0000Z.230414T0600Z.230417T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL MONDAY
EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...West Fork Des Moines River near Avoca.
* WHEN...Until Monday evening.
* IMPACTS...At 1426.0 feet, significant amounts of crop and pasture
land are flooded.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Thursday the stage was 1425.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Thursday was 1425.5 feet.
- Forecast...The river is expected to rise to a crest of 1425.6
feet just after midnight tonight. It will then fall below
flood stage Sunday evening.
- Flood stage is 1425.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
West Fork Des Moines River
Avoca 1425.0 1425.5 Thu 9 pm 1425. 1425.
1425.
&&
LAT...LON 4407 9570 4410 9566 4384 9531 4383 9537
$$
IAC149-SDC127-150515-
/O.CON.KFSD.FL.W.0028.000000T0000Z-000000T0000Z/
/BSRS2.1.SM.230412T0537Z.230413T2330Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River near Richland.
* WHEN...Until further notice.
* IMPACTS...At 1119.0 feet, widespread flooding of crop and pasture
land begins.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 1118.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 1118.1 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1117.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Richland 1117.0 1118.1 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4280 9664 4277 9657 4273 9661 4267 9653
4263 9659 4272 9670
$$
IAC119-SDC083-099-150515-
/O.CON.KFSD.FL.W.0026.000000T0000Z-000000T0000Z/
/BBSS2.1.SM.230411T0607Z.230412T0345Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Big Sioux River at Brandon.
* WHEN...Until further notice.
* IMPACTS...At 1304.0 feet, significant flooding of crop and pasture
land begins. Access to the north end of the Big Sioux Recreation
Area on the west side of Brandon is limited.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 1304.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 1304.5 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1304.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Brandon 1304.0 1304.5 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4363 9663 4362 9658 4350 9657 4344 9657
4344 9662 4354 9663
$$
SDC011-057-150515-
/O.CON.KFSD.FL.W.0025.000000T0000Z-000000T0000Z/
/BSES2.2.SM.230411T0703Z.230412T1600Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Estelline.
* WHEN...Until further notice.
* IMPACTS...At 1645.5 feet, widespread flooding of agricultural
lands begins.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 1645.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 1645.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1644.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Estelline 1644.0 1645.6 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690
$$
SDC099-150515-
/O.CON.KFSD.FL.W.0023.000000T0000Z-000000T0000Z/
/SFLS2.1.SM.230411T0157Z.230411T2000Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Sioux Falls I-90.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, some agricultural land between 60th Street
North and Interstate 90 begins to flood.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 12.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 12.9 feet.
- Forecast...The river is expected to rise to a crest of 13.4
feet early Sunday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Sioux Falls I-9 12.0 12.9 Thu 9 pm 13.0 13.2 13.4
&&
LAT...LON 4367 9676 4367 9671 4362 9674 4360 9672
4357 9672 4356 9673 4360 9674 4362 9676
$$
SDC011-150515-
/O.CON.KFSD.FL.W.0022.000000T0000Z-000000T0000Z/
/BRCS2.2.SM.230410T1100Z.230411T1315Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring.
* WHERE...Big Sioux River near Bruce.
* WHEN...Until further notice.
* IMPACTS...At 10.5 feet, 198th Street and 199th Street between
466th and 467th avenues are flooded, as is 202nd Street between
465th and 467th avenues, and 465th Avenue between 203rd and 204th
streets.
* ADDITIONAL DETAILS...
- At 9:45 PM CDT Thursday the stage was 10.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 PM CDT Thursday was 10.2 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 8.0 feet.
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Big Sioux River
Bruce 8.0 10.1 Thu 9 pm MSG MSG MSG
&&
LAT...LON 4450 9690 4450 9684 4449 9688 4440 9689
4433 9687 4433 9692 4442 9693
$$
IAC149-SDC127-150515-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/AKRI4.1.SM.230411T0500Z.230414T0600Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Big Sioux River at Akron.
* WHEN...Until further notice.
* IMPACTS...At 17.0 feet, about 6500 acres of farm land are flooded.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Thursday the stage was 17.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Thursday was 17.9 feet.
- Forecast...The river is expected to rise to a crest of 17.9
feet just after midnight tonight.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Akron 16.0 17.9 Thu 9 pm 17.8 17.4 17.0
&&
LAT...LON 4291 9659 4291 9649 4277 9657 4280 9664
$$
SDC011-101-150515-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BRKS2.2.SM.230411T0424Z.230415T0000Z.000000T0000Z.NO/
1001 PM CDT Thu Apr 13 2023
...FLOOD WARNING FOR SNOWMELT REMAINS IN EFFECT UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big Sioux River near Brookings.
* WHEN...Until further notice.
* IMPACTS...At 11.7 feet, 473rd Avenue at 221st Street begins to
flood.
* ADDITIONAL DETAILS...
- At 9:45 PM CDT Thursday the stage was 11.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 PM CDT Thursday was 11.2 feet.
- Forecast...The river is expected to rise to a crest of 11.4
feet tomorrow evening.
- Flood stage is 9.0 feet.
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Big Sioux River
Brookings 9.0 11.2 Thu 9 pm 11.4 11.3 11.1
&&
LAT...LON 4433 9692 4433 9687 4421 9677 4415 9665
4413 9669 4420 9683
$$
SGWhat forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Sioux Falls, SD wrote its last area forecast discussion before this river flood warning went out at Apr 10, 4:10 AM CDT, 8 minutes earlier.
Area forecast discussion, Apr 10, 4:10 AM CDT, 8 minutes before
AREA FORECAST DISCUSSION
National Weather Service Sioux Falls SD
410 AM CDT Mon Apr 10 2023
.SHORT TERM...(Today and Tonight)
Issued at 337 AM CDT Mon Apr 10 2023
KEY MESSAGES:
1. Strong warming through mid week, with elevated to critical fire
weather concerns Tuesday through Thursday.
2. Warming will also bring increasing snowmelt flooding risk on area
rivers and creeks.
3. Turning cooler with additional precipitation chances late week
into the weekend.
--------------------------------
Relatively calm start to the week, both in terms of winds and
overall weather concerns, though we are starting to see more rises
on area creeks/rivers due to recent snowmelt. Expect this will
continue for the next several days as much warmer temperatures in
the upcoming days should do a number on the remaining snowpack in
east central SD/southwest MN.
For today, surface ridge over the forecast area early this morning
has allowed patchy/shallow fog to develop, and this could linger a
few hours beyond sunrise. The surface ridge axis will slide slowly
southeast into Iowa through the day. This should provide southeast
parts of the CWA with light/variable winds much of the day, while
the northwest half begins to see some increase in southwesterly
flow. Nothing too extreme, as the gradient is still rather loose,
but perhaps a 15-20 mph breeze at times. Given the weaker low level
flow, temperatures are tricky as we may not see optimal mixing. Thus
will stick pretty close to NBM temperatures across northwest Iowa
today, but did nudge our western areas closer to the 75th percentile
of NBM, given potential for deeper mixing toward central SD. Areas
with the lingering snow cover will still remain slightly cooler,
with highs generally ranging from upper 50s over the snowpack, to
near 80 in south central SD.
South-southwest flow increases a bit more overnight as the ridge
axis slides further away and a southwesterly low level jet develops
across the area. This should make for a mild night, with lows in the
40s-lower 50s.
.LONG TERM...(Tuesday through Sunday)
Issued at 337 AM CDT Mon Apr 10 2023
TUESDAY THROUGH THURSDAY: Upper ridge moves across the region
through the mid-week period, with well above normal low-level
thermal ridge building across our forecast area. Deterministic
models show 850mb temperatures within this thermal ridge reaching
15-20+C across our area through this midweek period, with warmest
readings across our west on Tuesday. A little more uncertainty by
Wednesday and Thursday, as models show some variance in whether a
cool front will sag into our northwest counties, or if it will
remain northwest of the forecast area. In either case, confidence
is high that areas near and southeast of a Lake Andes to Sioux
Falls to Marshall line will be within the low-level thermal ridge.
For these areas where confidence in strong warming is highest,
pushed forecast highs closer to a blend of the NBM 75th and 90th
percentiles, while keeping areas of less confidence closer to a
50th/75th percentile blend. This brings high temperatures close
to 90F for areas near/west of the James River on Tuesday, and
through the Missouri River Valley and parts of northwest Iowa on
Wednesday.
At the same time, with efficient mixing expected, have lowered
dew points in these same areas, which yields near-critical to
critical humidity levels across much of our snow-free areas on
Tuesday-Wednesday. Good mixing will also result in gusty south to
southwest winds both days, perhaps as high as 40 mph in some areas
west of I-29 Tuesday, but more generally in the 25-35 mph range.
With the rather high confidence in hot/dry/windy conditions, have
issued a Fire Weather Watch for our snow-free areas for Tuesday,
with the Grassland Fire Danger Index reaching the extreme category
across much of these areas. Similar conditions may be seen across
southern parts of the CWA Wednesday-Thursday, currently indicated
to be most likely in areas south of a line from Yankton to Spirit
Lake. If the current forecast holds, additional fire weather
headlines seem likely for some areas on these days as well.
This hot/dry/windy pattern breaks by Friday and into the weekend,
as the upper ridge shifts east and an elongated upper trough moves
into the Plains. Deterministic models in fairly good agreement
showing a wedge of sub-zero 850mb temperatures pushing south into
the forecast area by Saturday, with an overall unsettled pattern
bringing increasing potential for precipitation. Timing is still
uncertain, so will stick with broad-brushed chance range pops for
now, but this may be narrowed down a bit in later forecasts.
Temperatures also return closer to, or even below normal by this
weekend, with a potential for sub-freezing low temperatures in at
least northern parts of the forecast area.
&&
.AVIATION...(For the 06Z TAFS through 06Z Monday Night)
Issued at 1028 PM CDT Sun Apr 9 2023
Light showers/sprinkles will linger through northwestern IA and
parts of southwestern MN through early tonight, then ending by
08Z. Winds will be light at KHON and KFSD tonight, and patchy fog
will be possible north of Interstate 90 in areas with recent
snowmelt. Winds at those TAF sites will then increase slightly out
of the south/southwest on Monday. Winds at KSUX will remain out
of the south for the first portion of the night, then transition
to northerly late tonight as a boundary moves through the area.
Winds there will then switch back to southeasterly on Monday
evening.
&&
.FIRE WEATHER...
Issued at 337 AM CDT Mon Apr 10 2023
Today should bring a break from fire weather concerns, but they
will ramp up quickly by Tuesday across much of the forecast area.
Areas with lingering snow cover, or recent melt, should see the
least impacts, but any locations which have been snow-free for
several days or longer will see critical fire weather conditions
develop Tuesday. A Fire Weather Watch has been issued for these
areas Tuesday afternoon and early evening, with humidity levels as
low as 15 to 25 percent, and south-southwest winds gusting 30 to
40 mph.
Wednesday and Thursday will see these conditions persist, at least
for northwest Iowa and nearby portions of northeast Nebraska and
far southeast South Dakota. Areas farther to the northwest are
more uncertain, as a weak boundary could sag into portions of
southeast South Dakota, providing somewhat higher humidity levels
and lighter winds.
Cooler and wetter weather is expected to move across the forecast
area Friday through the weekend.
&&
.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Fire Weather Watch from Tuesday afternoon through Tuesday
evening for SDZ050-052>054-057>071.
MN...None.
IA...Fire Weather Watch from Tuesday afternoon through Tuesday
evening for IAZ001>003-012>014-020>022-031-032.
NE...Fire Weather Watch from Tuesday afternoon through Tuesday
evening for NEZ013-014.
&&
SHORT TERM...JH
LONG TERM...JH
AVIATION...JM
FIRE WEATHER...JHHazardous weather outlook, Apr 9, 6:29 PM CDT, 9 hours 49 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 629 PM CDT Sun Apr 9 2023 IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-102330- Lyon-Osceola-Dickinson-Sioux-O'Brien-Clay-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Lincoln-Murray-Cottonwood-Nobles-Jackson- Pipestone-Rock-Dixon-Dakota-Beadle-Kingsbury-Brookings-Gregory- Jerauld-Sanborn-Miner-Lake-Moody-Brule-Aurora-Davison-Hanson-McCook- Minnehaha-Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton- Union- 629 PM CDT Sun Apr 9 2023 This Hazardous Weather Outlook is for northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska, central South Dakota, east central South Dakota, south central South Dakota and southeast South Dakota. .DAY ONE...Tonight. Hazardous weather is not expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Gusty south to southwest winds, combined with warming afternoon temperatures and low humidity levels, will return on Tuesday and Wednesday. These conditions may result in very high to extreme fire danger across snow-free areas on those days. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 10, 3:30 AM CDT | Fire Weather Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 10 hr |
| Apr 10, 1:44 PM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 31 hr |
| Apr 9, 11:04 PM CDT | River Flood Warning | FSD | Moody | 21 days |
| Apr 10, 1:44 AM CDT | River Flood Warning | FSD | Minnehaha, Moody | 21 days |
| Apr 10, 3:12 AM CDT | River Flood Warning | FSD | Moody | 21 days |
| Apr 10, 7:03 AM CDT | River Flood Warning | FSD | Brookings | 17 days |
Nearby
River Flood Warnings in Iowa, 2023River Flood Warnings in South Dakota, 2023Every river flood warning in 2023
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.