Alert archive / Iowa / River Flood Warnings in 2024
River Flood Warning 3, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at May 2, 2024, 8:50 AM CDT for Clay County, Iowa. It took effect at May 2, 2024, 11:59 AM CDT. It was in force for 69 hr.
The area
The outline as issued.
The facts
- Issued
- May 2, 2024, 8:50 AM CDT (13:50 UTC)
- In effect from
- May 2, 2024, 11:59 AM CDT
- Expired
- May 5, 2024, 8:57 AM CDT
- In force
- 69 hr
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Clay County, IA
The radar
The Sioux Falls radar (KFSD), 130 km from the middle of the area, began a volume at 13:48 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 Ocheyedan River near Spencer (SPOI4). The gauge peaked at 9.09 ft at May 3, 2024, 12:00 PM CDT.
- Action stage
- 7 ft
- Minor stage
- 8 ft
- Moderate stage
- 9.5 ft
- Major stage
- 10.5 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 06605000, 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.
006
WGUS43 KFSD 021350
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
850 AM CDT Thu May 2 2024
...The National Weather Service in Sioux Falls SD has issued a Flood
Warning for the following rivers in Iowa...
Ocheyedan River near Spencer affecting Clay County.
Little Sioux River at Cherokee affecting Cherokee 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 Friday morning.
&&
IAC041-031600-
/O.NEW.KFSD.FL.W.0003.240502T1659Z-240506T1500Z/
/SPOI4.1.ER.240502T1659Z.240503T1200Z.240505T1500Z.NO/
850 AM CDT Thu May 2 2024
...FLOOD WARNING IN EFFECT FROM THIS MORNING TO LATE MONDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...From this morning to late Monday morning.
* IMPACTS...At 9.5 feet, significant amounts of pasture and other
farm land begin flooding.
* ADDITIONAL DETAILS...
- At 7:45 AM CDT Thursday the stage was 7.6 feet.
- Forecast...The river is expected to rise above flood stage
late this morning to a crest of 8.8 feet tomorrow morning. It
will then fall below flood stage late Sunday morning.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Ocheyedan River
Spencer 8.0 7.6 Thu 7 am 8.8 8.6 8.1
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC035-031600-
/O.NEW.KFSD.FL.W.0004.240503T0243Z-240508T0000Z/
/CHKI4.1.ER.240503T0243Z.240503T1800Z.240507T0000Z.NO/
850 AM CDT Thu May 2 2024
...FLOOD WARNING IN EFFECT FROM THIS EVENING TO TUESDAY EVENING...
* WHAT...Minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...From this evening to Tuesday evening.
* IMPACTS...At 18.0 feet, Cherokee city park begins to flood on the
south bank of the river.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Thursday the stage was 15.3 feet.
- Forecast...The river is expected to rise above flood stage
late this evening to a crest of 18.2 feet early tomorrow
afternoon. It will then fall below flood stage Monday
evening.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Fri Sat Sun
Little Sioux River
Cherokee 17.0 15.3 Thu 7 am 18.1 17.8 17.4
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
Dux6 follow-up statements
282
WGUS83 KFSD 030201
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
901 PM CDT Thu May 2 2024
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River at Cherokee affecting Cherokee County.
Waterman Creek near Sutherland affecting O'Brien County.
Little Sioux River above Spencer / Highway 18 affecting Clay
County.
Little Sioux River at Spencer affecting Clay County.
Little Sioux River near Milford affecting Dickinson County.
...The Flood Warning is extended for the following rivers in Iowa...
Ocheyedan River near Spencer affecting Clay 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 Friday evening.
&&
IAC035-040415-
/O.EXT.KFSD.FL.W.0004.240503T0201Z-240507T1800Z/
/CHKI4.1.ER.240503T0032Z.240503T1800Z.240506T1800Z.NO/
901 PM CDT Thu May 2 2024
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO EARLY TUESDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...From this evening to early Tuesday afternoon.
* IMPACTS...At 18.0 feet, Cherokee city park begins to flood on the
south bank of the river.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Thursday the stage was 17.0 feet.
- Forecast...The river is expected to rise to a crest of 18.1
feet early tomorrow afternoon. It will then fall below flood
stage early Monday afternoon.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Little Sioux River
Cherokee 17.0 17.0 Thu 7 pm 18.1 17.3 17.0
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
IAC041-040415-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-240507T0000Z/
/SPOI4.1.ER.240502T1415Z.240503T1200Z.240506T0000Z.NO/
901 PM CDT Thu May 2 2024
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...Until Monday evening.
* IMPACTS...At 9.5 feet, significant amounts of pasture and other
farm land begin flooding.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Thursday the stage was 8.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Thursday was 8.9 feet.
- Forecast...The river is expected to rise to a crest of 9.1
feet tomorrow morning. It will then fall below flood stage
Sunday evening.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Ocheyedan River
Spencer 8.0 8.9 Thu 7 pm 9.0 8.5 8.0
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC141-040415-
/O.CON.KFSD.FL.W.0006.000000T0000Z-000000T0000Z/
/SWCI4.1.ER.240502T1449Z.240502T1815Z.000000T0000Z.UU/
901 PM CDT Thu May 2 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Waterman Creek near Sutherland.
* WHEN...Until further notice.
* IMPACTS...At 1235.0 feet, ditches fill and minor lowland flooding
begins.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Thursday the stage was 1235.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Thursday was 1236.2 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1235.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Waterman Creek
Sutherland 1235.0 1235.4 Thu 8 pm MSG MSG MSG
&&
LAT...LON 4305 9546 4305 9540 4294 9541 4294 9543
$$
IAC041-040415-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240503T0100Z.000000T0000Z.UU/
901 PM CDT Thu May 2 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Little Sioux River above Spencer / Highway 18.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Thursday the stage was 1322.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Thursday was 1322.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1322.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Little Sioux River
Spencer / Highway 1 1322.0 1322.8 Thu 8 pm MSG MSG MSG
&&
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
4317 9520 4321 9526
$$
IAC041-040415-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240503T1200Z.000000T0000Z.NO/
901 PM CDT Thu May 2 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Spencer.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 7:15 PM CDT Thursday the stage was 11.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:15 PM CDT Thursday was 11.4 feet.
- Forecast...The river is expected to rise to a crest of 12.0
feet tomorrow morning.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Little Sioux River
Spencer 10.0 11.4 Thu 7 pm 12.0 11.7 11.2
&&
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
4296 9508 4296 9516 4306 9508 4312 9519
$$
IAC059-040415-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.240501T0040Z.240503T0600Z.000000T0000Z.NO/
901 PM CDT Thu May 2 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River near Milford.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, significant amounts of pasture and other
farm lands begin to flood.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Thursday the stage was 13.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 PM CDT Thursday was 13.7 feet.
- Forecast...The river is expected to remain nearly steady
around 13.7 feet through early afternoon Friday, and then
start slowly falling.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Little Sioux River
Milford 12.0 13.7 Thu 7 pm 13.6 13.5 13.0
&&
LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520
4326 9527 4329 9523
$$
Masters251
WGUS83 KFSD 031532
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
1032 AM CDT Fri May 3 2024
...The Flood Warning is extended for the following rivers in Iowa...
Little Sioux River at Cherokee affecting Cherokee County.
Ocheyedan River near Spencer affecting Clay County.
Little Sioux River above Spencer / Highway 18 affecting Clay
County.
Little Sioux River at Spencer affecting Clay County.
Little Sioux River near Milford affecting Dickinson 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 Saturday afternoon.
&&
IAC035-041745-
/O.EXT.KFSD.FL.W.0004.000000T0000Z-240508T0000Z/
/CHKI4.1.ER.240503T0032Z.240503T1000Z.240507T0000Z.NO/
1032 AM CDT Fri May 3 2024
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...Until Tuesday evening.
* IMPACTS...At 18.0 feet, Cherokee city park begins to flood on the
south bank of the river.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Friday the stage was 18.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Friday was 18.2 feet.
- Forecast...The river is expected to fall below flood stage
Monday evening and continue falling to 16.2 feet Wednesday
morning. This will be dependent on rainfall over the next 24
hours.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Little Sioux River
Cherokee 17.0 18.1 Fri 9 am 17.7 17.4 17.1
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
IAC041-041745-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-240507T1200Z/
/SPOI4.1.ER.240502T1415Z.240503T1045Z.240506T1200Z.NO/
1032 AM CDT Fri May 3 2024
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...Until Tuesday morning.
* IMPACTS...At 9.5 feet, significant amounts of pasture and other
farm land begin flooding.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Friday the stage was 9.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Friday was 9.1 feet.
- Forecast...The river is expected to fall below flood stage
Monday morning and continue falling to 7.2 feet Wednesday
morning. This will be dependent on rainfall over the next 24
hours.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Ocheyedan River
Spencer 8.0 9.0 Fri 9 am 8.7 8.4 7.9
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC041-041745-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240503T1300Z.000000T0000Z.UU/
1032 AM CDT Fri May 3 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Little Sioux River above Spencer / Highway 18.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Friday the stage was 1322.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Friday was 1322.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1322.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Little Sioux River
Spencer / Highway 1 1322.0 1322.8 Fri 9 am MSG MSG MSG
&&
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
4317 9520 4321 9526
$$
IAC041-041745-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240503T1800Z.000000T0000Z.NO/
1032 AM CDT Fri May 3 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Spencer.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Friday the stage was 11.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Friday was 11.9 feet.
- Forecast...The river is expected to rise to a crest of 12.0
feet this afternoon. The river may then begin to fall
depending on rainfall over the next 24 hours.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Little Sioux River
Spencer 10.0 11.8 Fri 9 am 12.0 11.7 11.3
&&
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
4296 9508 4296 9516 4306 9508 4312 9519
$$
IAC059-041745-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.240501T0040Z.240503T1300Z.000000T0000Z.NO/
1032 AM CDT Fri May 3 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River near Milford.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, significant amounts of pasture and other
farm lands begin to flood.
* ADDITIONAL DETAILS...
- At 9:00 AM CDT Friday the stage was 13.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 AM CDT Friday was 13.8 feet.
- Forecast...The river is expected to rise to a crest of 13.9
feet tomorrow morning. This will be dependent on rainfall
over the next 24 hours.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Little Sioux River
Milford 12.0 13.8 Fri 9 am 13.6 13.3 12.9
&&
LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520
4326 9527 4329 9523
$$
AP221
WGUS83 KFSD 040127
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
827 PM CDT Fri May 3 2024
...The Flood Warning is extended for the following rivers in Iowa...
Little Sioux River at Cherokee affecting Cherokee County.
Ocheyedan River near Spencer affecting Clay County.
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River above Spencer / Highway 18 affecting Clay
County.
Little Sioux River at Spencer affecting Clay County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued by Saturday evening.
&&
IAC035-050330-
/O.EXT.KFSD.FL.W.0004.000000T0000Z-000000T0000Z/
/CHKI4.1.ER.240503T0032Z.240506T0000Z.000000T0000Z.NO/
827 PM CDT Fri May 3 2024
...FLOOD WARNING NOW IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...Until further notice.
* IMPACTS...At 19.0 feet, the north bank of the river overflows.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Friday the stage was 17.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 PM CDT Friday was 18.1 feet.
- Forecast...The river is expected to rise to a crest of 19.6
feet Sunday evening.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Little Sioux River
Cherokee 17.0 17.5 Fri 7 pm 18.7 19.6 19.1
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
IAC041-050330-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-240509T1200Z/
/SPOI4.1.ER.240502T1415Z.240505T0000Z.240508T1200Z.NO/
827 PM CDT Fri May 3 2024
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...Until Thursday morning.
* IMPACTS...At 9.5 feet, significant amounts of pasture and other
farm land begin flooding.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Friday the stage was 9.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Friday was 9.1 feet.
- Forecast...The river is expected to rise to a crest of 9.2
feet tomorrow evening. It will then fall below flood stage
Wednesday morning.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Ocheyedan River
Spencer 8.0 9.0 Fri 7 pm 9.2 9.0 8.6
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC041-050330-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240503T1300Z.000000T0000Z.UU/
827 PM CDT Fri May 3 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Little Sioux River above Spencer / Highway 18.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 7:30 PM CDT Friday the stage was 1322.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:30 PM CDT Friday was 1322.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1322.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Little Sioux River
Spencer / Highway 1 1322.0 1322.8 Fri 7 pm MSG MSG MSG
&&
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
4317 9520 4321 9526
$$
IAC041-050330-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240505T0600Z.000000T0000Z.NO/
827 PM CDT Fri May 3 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Spencer.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, city sewers in Spencer can begin to back
up. Highway 18 between Spencer and Dickens can start flooding if
flows on the tributary creeks are also very high.
* ADDITIONAL DETAILS...
- At 7:15 PM CDT Friday the stage was 12.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:15 PM CDT Friday was 12.2 feet.
- Forecast...The river is expected to rise to a crest of 12.4
feet early Sunday morning.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Little Sioux River
Spencer 10.0 12.2 Fri 7 pm 12.3 12.3 12.1
&&
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
4296 9508 4296 9516 4306 9508 4312 9519
$$
Chapman806
WGUS83 KFSD 041322
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
822 AM CDT Sat May 4 2024
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River At Linn Grove affecting O'Brien, Buena Vista,
Clay and Cherokee Counties.
Little Sioux River at Cherokee affecting Cherokee County.
Ocheyedan River near Spencer affecting Clay County.
Little Sioux River above Spencer / Highway 18 affecting Clay
County.
Little Sioux River at Spencer affecting Clay County.
Little Sioux River near Milford affecting Dickinson County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday morning.
&&
IAC021-035-041-141-051530-
/O.EXT.KFSD.FL.W.0007.000000T0000Z-240508T1200Z/
/LNNI4.1.ER.240504T0340Z.240505T1800Z.240507T1200Z.NO/
822 AM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Linn Grove.
* WHEN...Until Wednesday morning.
* IMPACTS...At 18.5 feet, the city park in Sioux Rapids is flooded.
* ADDITIONAL DETAILS...
- At 8:00 AM CDT Saturday the stage was 18.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 AM CDT Saturday was 18.4 feet.
- Forecast...The river is expected to rise to a crest of 18.8
feet early tomorrow afternoon. It will then fall below flood
stage Tuesday morning.
- Flood stage is 18.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Linn Grove 18.0 18.4 Sat 8 am 18.7 18.6 18.0
&&
LAT...LON 4296 9544 4296 9508 4287 9509 4287 9542
4292 9547
$$
IAC035-051530-
/O.EXT.KFSD.FL.W.0004.000000T0000Z-240509T0300Z/
/CHKI4.1.ER.240503T0032Z.240505T1200Z.240508T0300Z.NO/
822 AM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...Until late Wednesday evening.
* IMPACTS...At 18.0 feet, Cherokee city park begins to flood on the
south bank of the river.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Saturday the stage was 17.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 AM CDT Saturday was 17.5 feet.
- Forecast...The river is expected to rise to a crest of 17.8
feet tomorrow morning. It will then fall below flood stage
late Tuesday evening.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Cherokee 17.0 17.4 Sat 7 am 17.8 17.8 17.4
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
IAC041-051530-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-240506T0000Z/
/SPOI4.1.ER.240502T1415Z.240504T0130Z.240505T0000Z.NO/
822 AM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...Until tomorrow evening.
* IMPACTS...At 8.0 feet, minor flooding of pasture land begins.
* ADDITIONAL DETAILS...
- At 7:45 AM CDT Saturday the stage was 8.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 AM CDT Saturday was 9.0 feet.
- Forecast...The river is expected to fall below flood stage
this evening and continue falling to 6.5 feet Thursday
morning.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Ocheyedan River
Spencer 8.0 8.6 Sat 7 am 7.7 7.2 6.9
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC041-051530-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240503T1300Z.000000T0000Z.UU/
822 AM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Little Sioux River above Spencer / Highway 18.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Saturday the stage was 1322.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:30 AM CDT Saturday was 1322.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1322.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Little Sioux River
Spencer / Highway 1 1322.0 1322.8 Sat 7 am MSG MSG MSG
&&
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
4317 9520 4321 9526
$$
IAC041-051530-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240504T1800Z.000000T0000Z.NO/
822 AM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Spencer.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, city sewers in Spencer can begin to back
up. Highway 18 between Spencer and Dickens can start flooding if
flows on the tributary creeks are also very high.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Saturday the stage was 12.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 AM CDT Saturday was 12.3 feet.
- Forecast...The river is expected to rise to a crest of 12.3
feet this afternoon.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Spencer 10.0 12.3 Sat 7 am 12.2 11.8 11.3
&&
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
4296 9508 4296 9516 4306 9508 4312 9519
$$
IAC059-051530-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.240501T0040Z.240505T0000Z.000000T0000Z.NO/
822 AM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River near Milford.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, significant amounts of pasture and other
farm lands begin to flood.
* ADDITIONAL DETAILS...
- At 7:00 AM CDT Saturday the stage was 13.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 AM CDT Saturday was 13.6 feet.
- Forecast...The river is expected to rise to a crest of 13.8
feet this evening.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Milford 12.0 13.6 Sat 7 am 13.8 13.5 13.1
&&
LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520
4326 9527 4329 9523
$$
AP893
WGUS83 KFSD 050150
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
850 PM CDT Sat May 4 2024
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River At Linn Grove affecting Buena Vista, Cherokee,
O'Brien and Clay Counties.
Little Sioux River at Cherokee affecting Cherokee County.
Little Sioux River above Spencer / Highway 18 affecting Clay
County.
Little Sioux River at Spencer affecting Clay County.
Little Sioux River near Milford affecting Dickinson County.
...The Flood Warning is extended for the following rivers in Iowa...
Ocheyedan River near Spencer affecting Clay County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
The next statement will be issued by Sunday evening.
&&
IAC021-035-041-141-060400-
/O.EXT.KFSD.FL.W.0007.000000T0000Z-240508T0000Z/
/LNNI4.1.ER.240504T0340Z.240504T2230Z.240507T0000Z.NO/
850 PM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Linn Grove.
* WHEN...Until Tuesday evening.
* IMPACTS...At 18.5 feet, the city park in Sioux Rapids is flooded.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 19.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Saturday was 19.2 feet.
- Forecast...The river is expected to fall below flood stage
Monday evening and continue falling to 15.2 feet Thursday
evening.
- Flood stage is 18.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Linn Grove 18.0 19.0 Sat 8 pm 18.8 18.0 17.2
&&
LAT...LON 4296 9544 4296 9508 4287 9509 4287 9542
4292 9547
$$
IAC035-060400-
/O.EXT.KFSD.FL.W.0004.000000T0000Z-240508T2100Z/
/CHKI4.1.ER.240503T0032Z.240505T1800Z.240507T2100Z.NO/
850 PM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Cherokee.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 18.0 feet, Cherokee city park begins to flood on the
south bank of the river.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Saturday the stage was 17.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 PM CDT Saturday was 17.5 feet.
- Forecast...The river is expected to rise to a crest of 18.2
feet early tomorrow afternoon. It will then fall below flood
stage Tuesday afternoon.
- Flood stage is 17.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Cherokee 17.0 17.4 Sat 7 pm 18.2 17.8 16.9
&&
LAT...LON 4292 9547 4287 9542 4264 9555 4256 9569
4256 9581 4269 9561 4280 9559
$$
IAC041-060400-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-240506T1200Z/
/SPOI4.1.ER.240502T1415Z.240504T0130Z.240505T1200Z.NO/
850 PM CDT Sat May 4 2024
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Ocheyedan River near Spencer.
* WHEN...Until Monday morning.
* IMPACTS...At 8.0 feet, minor flooding of pasture land begins.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Saturday the stage was 8.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Saturday was 8.5 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 6.4 feet Thursday
evening.
- Flood stage is 8.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Ocheyedan River
Spencer 8.0 8.3 Sat 7 pm 7.7 7.3 6.9
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
IAC041-060400-
/O.CON.KFSD.FL.W.0005.000000T0000Z-000000T0000Z/
/SPII4.1.ER.240502T1330Z.240503T1300Z.000000T0000Z.UU/
850 PM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring.
* WHERE...Little Sioux River above Spencer / Highway 18.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 1322.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Saturday was 1322.8 feet.
- Forecast...No forecast is available for this location.
- Flood stage is 1322.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (unknown time)
Location Stg Stg Day/Time d1 d2 d3
Little Sioux River
Spencer / Highway 1 1322.0 1322.7 Sat 8 pm MSG MSG MSG
&&
LAT...LON 4326 9527 4326 9520 4321 9521 4317 9514
4317 9520 4321 9526
$$
IAC041-060400-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/SPWI4.1.ER.240501T0257Z.240504T1400Z.000000T0000Z.NO/
850 PM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River at Spencer.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, city sewers in Spencer can begin to back
up. Highway 18 between Spencer and Dickens can start flooding if
flows on the tributary creeks are also very high.
* ADDITIONAL DETAILS...
- At 7:15 PM CDT Saturday the stage was 12.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:15 PM CDT Saturday was 12.3 feet.
- Forecast...The river is expected to fall to 10.2 feet
Thursday evening.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Spencer 10.0 12.1 Sat 7 pm 11.7 11.2 10.8
&&
LAT...LON 4317 9520 4317 9514 4313 9502 4300 9501
4296 9508 4296 9516 4306 9508 4312 9519
$$
IAC059-060400-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.240501T0040Z.240504T1700Z.000000T0000Z.NO/
850 PM CDT Sat May 4 2024
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Little Sioux River near Milford.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, significant amounts of pasture and other
farm lands begin to flood.
* ADDITIONAL DETAILS...
- At 7:00 PM CDT Saturday the stage was 13.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:00 PM CDT Saturday was 13.6 feet.
- Forecast...The river is expected to fall to 12.0 feet
Thursday evening.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Sun Mon Tue
Little Sioux River
Milford 12.0 13.5 Sat 7 pm 13.4 13.1 12.7
&&
LAT...LON 4341 9527 4341 9523 4330 9515 4326 9520
4326 9527 4329 9523
$$
Chapman956
WGUS83 KFSD 051357
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
857 AM CDT Sun May 5 2024
...The Flood Warning is cancelled for the following rivers in Iowa...
Ocheyedan River near Spencer affecting Clay County.
IAC041-051500-
/O.CAN.KFSD.FL.W.0003.000000T0000Z-240505T1357Z/
/SPOI4.1.ER.240502T1415Z.240504T0130Z.240505T1215Z.NO/
857 AM CDT Sun May 5 2024
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Ocheyedan River near Spencer.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Sunday the stage was 8.0 feet.
- Forecast...The river is expected to continue to fall through
at least the first half of Monday. Additional rises are
possible thereafter dependent on rainfall later Monday, which
is not factored into the current forecast.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Mon Tue Wed
Ocheyedan River
Spencer 8.0 8.0 Sun 8 am 7.5 7.1 6.8
&&
LAT...LON 4317 9531 4314 9516 4313 9514 4312 9520
4313 9531
$$
KalinWhat 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 May 2, 6:39 AM CDT, 2 hours 11 minutes earlier. Its key messages:
- With up to 1-1.5" of rainfall fallen across portions of northwestern Iowa overnight by sunrise, there may be ponding of water on roadways and low-lying area, with some rises on the local rivers/streams.
- Main area of showers and thunderstorms will move east this morning, with additional pop-up showers possible throughout the day.
- Additional chances for scattered showers and thunderstorms return Friday night into Saturday, and again Monday night into Tuesday.
Area forecast discussion, May 2, 6:39 AM CDT, 2 hours 11 minutes before
Area Forecast Discussion National Weather Service Sioux Falls SD 639 AM CDT Thu May 2 2024 .KEY MESSAGES... - With up to 1-1.5" of rainfall fallen across portions of northwestern Iowa overnight by sunrise, there may be ponding of water on roadways and low-lying area, with some rises on the local rivers/streams. - Main area of showers and thunderstorms will move east this morning, with additional pop-up showers possible throughout the day. - Additional chances for scattered showers and thunderstorms return Friday night into Saturday, and again Monday night into Tuesday. && .DISCUSSION... Issued at 406 AM CDT Thu May 2 2024 Early morning radar shows showers and thunderstorms shifting eastwards across the region, and as of 3 AM majority of the rainfall is occurring east of the James River Valley. This activity is occurring as an inverted trough is extending northwards into the region, further aided by shortwaves moving around the cut-off upper level low parked on the International Border. As the inverted trough continues to shift eastwards, majority of the currently observed rainfall will be pushing east of US 71 across SW Minnesota and NW Iowa by the mid-morning hours. Soundings from across the region show that the low-levels remain saturated throughout the day, and as additional, albeit weaker, shortwaves move across the region, another round or two of showers are possible throughout the day. Given the saturated low-levels, not impossible to see some drizzle falling out of the stratus deck during the morning hours. Otherwise, a surface high pressure will be developing on the backside of the exiting surface low pressure, which result in a tightened surface pressure gradient leading to breezy winds developing throughout the afternoon hours. Highest wind gusts are expected along the central NE/SD border, where gusts into the mid 30s are possible, whereas elsewhere wind gusts into the mid 20s are expected. Afternoon temperatures are expected to rebound up into the mid 50s to lower 60s, possible mid 60s near the SD/IA/NE border. We'll be watching a new surface low pressure develop under the aforementioned cut-off upper level low, sending a cold front towards the region. After early morning lows in the mid 30s to lower 40s, with some patchy frost in central South Dakota, southwesterly winds will advect warm air into the region out. Areas west of I-29 will be the first to see the cold frontal passage, thus will see the coolest high temperatures in the upper 50s to lower 60s. Areas well ahead of the front are expected to reach back up into the mid 60s to lower 70s. The trough axis moves in quickly behind the cold front as it pushes eastwards across the area throughout the afternoon hours, and will lead to additional chances for scattered showers and thunderstorms overnight into Saturday. Instability looks to remain quite limited, with models showing a modest 200-500 J/kg of CAPE available, so no severe weather is expected. Given little time for moisture return since the last event, rainfall amounts are expected to remain light, resulting in a 20 to 40% chance for a quarter inch, lowest north of I-90 and highest south of I-90. As a strong cut-off upper level low moves ashore onto the west coast, upper level ridging will lead to dry conditions expected for the rest of Saturday and throughout Sunday. Highs on Saturday will fall into the lower to mid 60s, increasing on Sunday into the mid 60s to lower 70s. The upper level ridging breaks down into Monday as the big trough slides eastwards. The similarly strong surface low pressure will continue warm air advection as we remain in the developing warm sector, which will bring surface temperatures into the lower to mid 70s. Chances for showers and thunderstorms return Monday afternoon as the surface low continues to move eastwards, with a strong cold front moving across the region overnight into Tuesday. SPC has added a 15% chance for severe thunderstorms south of the area, with uncertainties on how north the instability is able to reach. Model solutions continue to show that the cut-off upper level low will stall out somewhere over the northern plains, which would result in continued chances for scattered showers and thunderstorms. && .AVIATION /12Z TAFS THROUGH 12Z FRIDAY/... Issued at 639 AM CDT Thu May 2 2024 Overnight showers are continuing to shift eastwards east of I-29, with MVFR/IFR cigs building into the region. Lowered cigs will stick around for most of the morning hours, begining to lift and clear for areas west of I-29 by the late morning. For areas along and east of I-29, lifting and clearing will occur from west to east throughout the afternoon hours. Breezy easterly winds will weaken throughout the morning hours, with winds strengthening again during the afternoon hours with winds out of the west. Highest wind gusts are expected along the central NE/SD border, where gusts into the mid 30s are possible, whereas elsewhere wind gusts into the mid 20s are expected. && .FSD WATCHES/WARNINGS/ADVISORIES... SD...None. MN...None. IA...None. NE...None. && DISCUSSION...APT AVIATION...APT
Hazardous weather outlook, May 2, 4:51 AM CDT, 3 hours 59 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 451 AM CDT Thu May 2 2024 IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ013-014-SDZ038>040-050-052>071-031000- 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- 451 AM CDT Thu May 2 2024 This Hazardous Weather Outlook is for portions of 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...Today and Tonight Early morning showers and thunderstorms exit the region throughout the morning hours. With up to 1-1.5" of rainfall fallen across portions of northwestern Iowa overnight, there may be ponding of water on roadways and low-lying area, with some rises on the local rivers/streams. Additional pop-up showers are possible throughout the day, though only light accumulations are expected. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Additional chances for scattered showers and thunderstorms return Friday night into Saturday, and again Monday night into Tuesday. .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 |
|---|---|---|---|---|
| May 2, 8:50 AM CDT | River Flood Warning | FSD | Cherokee | 13 days |
| May 2, 9:33 AM CDT | River Flood Warning | FSD | Clay | 21 days |
| May 2, 2:06 PM CDT | River Flood Warning | FSD | O'Brien | 24 hr |
Nearby
River Flood Warnings in Iowa, 2024Every river flood warning in 2024
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.