Alert archive / Iowa / River Flood Warnings in 2018
River Flood Warning 3, NWS Sioux Falls, SD
NWS Sioux Falls, SD issued this river flood warning at Mar 5, 2018, 1:15 PM CST for Clay County, Iowa. It took effect at Mar 5, 2018, 1:47 PM CST. It was in force for 4 days.
The area
The outline as issued.
The facts
- Issued
- Mar 5, 2018, 1:15 PM CST (19:15 UTC)
- In effect from
- Mar 5, 2018, 1:47 PM CST
- Expired
- Mar 9, 2018, 5:26 AM CST
- In force
- 4 days
- Issued by
- NWS Sioux Falls, SD
- Area
- Storm-based polygon
- Flood severity
- Minor
County Clay County, IA
The radar
The Sioux Falls radar (KFSD), 142 km from the middle of the area, began a volume at 19:18 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 Little Sioux River at Spencer (SPWI4).
- Action stage
- 9 ft
- Minor stage
- 10 ft
- Moderate stage
- 14 ft
- Major stage
- 16 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.
112
WGUS43 KFSD 051915
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
115 PM CST Mon Mar 5 2018
...The National Weather Service in Sioux Falls has issued a flood
warning for the following rivers in Iowa...
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC041-062314-
/O.NEW.KFSD.FL.W.0003.180305T1947Z-180308T0000Z/
/SPWI4.1.ER.180305T1947Z.180306T0600Z.180307T0000Z.NO/
115 PM CST Mon Mar 5 2018
The National Weather Service in Sioux Falls has issued a
* Flood Warning for
The Little Sioux River At Spencer.
* until Wednesday evening.
* At 12PM Monday the stage was 9.9 feet.
* Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Forecast...Rise above flood stage by 2 PM Monday and crest near
10.4 feet by Tuesday March 06. The river will fall below flood stage
by Tuesday March 06.
* At stages near 10.0 feet...The right bank overflows, and minor
flooding of the Spencer city park and some rural agricultural areas
begins.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Maximum Forecast
Stage Stage Time Stage Time
LITTLE SIOUX RIVER
SPWI4 10.0 9.89 Mon 12 PM 10.4 Tue 12 AM
MG7 follow-up statements
932
WGUS83 KFSD 060204
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
804 PM CST Mon Mar 5 2018
...The Flood Warning continues for the following rivers in
Minnesota...Iowa...
Split Rock Creek Below Jasper
Little Sioux River Near Milford
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
MNC133-SDC099-070603-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/JSPM5.1.ER.180305T1324Z.180306T0115Z.000000T0000Z.NO/
804 PM CST Mon Mar 5 2018
The Flood Warning continues for
The Split Rock Creek Below Jasper.
* until further notice.
* At 07PM Monday the stage was 92.9 feet.
* Flood stage is 91.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05.
&&
LAT...LON 4390 9639 4384 9637 4377 9642 4372 9648
4372 9654 4381 9649
$$
IAC041-059-070603-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.180305T0227Z.180305T1900Z.000000T0000Z.NO/
804 PM CST Mon Mar 5 2018
The Flood Warning continues for
The Little Sioux River Near Milford.
* until further notice.
* At 07PM Monday the stage was 13.1 feet.
* Flood stage is 12.0 feet.
* Recent activity...The river rose above flood stage on Sunday March
04.
* At stages near 14.0 feet...Significant amounts of pasture and other
farm lands begin to flood.
&&
LAT...LON 4350 9533 4350 9526 4334 9519 4334 9516
4328 9517 4329 9524
$$
IAC041-070603-
/O.CON.KFSD.FL.W.0003.000000T0000Z-180308T0000Z/
/SPWI4.1.ER.180305T1945Z.180306T0115Z.180307T0000Z.NO/
804 PM CST Mon Mar 5 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Wednesday evening.
* At 07PM Monday the stage was 10.5 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05.
* Forecast...The river will continue to fall to below flood stage by
Tuesday March 06.
* At stages near 10.0 feet...The right bank overflows, and minor
flooding of the Spencer city park and some rural agricultural areas
begins.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed
Stage Stage Time
SPLIT ROCK CREEK
JSPM5 91.0 92.93 Mon 7 PM
LITTLE SIOUX RIVER
MIFI4 12.0 13.14 Mon 7 PM
SPWI4 10.0 10.46 Mon 7 PM
ADAMS953
WGUS83 KFSD 061425
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
825 AM CST Tue Mar 6 2018
...The Flood Warning continues for the following rivers in
Minnesota...South Dakota...Iowa...
Split Rock Creek Below Jasper
Little Sioux River Near Milford
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
MNC133-SDC099-071824-
/O.CON.KFSD.FL.W.0002.000000T0000Z-000000T0000Z/
/JSPM5.1.ER.180305T1324Z.180306T0800Z.000000T0000Z.NO/
825 AM CST Tue Mar 6 2018
The Flood Warning continues for
The Split Rock Creek Below Jasper.
* until further notice.
* At 08AM Tuesday the stage was 91.7 feet.
* Flood stage is 91.0 feet.
* At stages near 91.0 feet...The lower banks on this stretch of the
creek are overtopped. The low water crossing on 250th Street at the
MN/SD state line is flooded.
&&
LAT...LON 4390 9639 4384 9637 4377 9642 4372 9648
4372 9654 4381 9649
$$
IAC041-059-071824-
/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.180305T0227Z.180305T1900Z.000000T0000Z.NO/
825 AM CST Tue Mar 6 2018
The Flood Warning continues for
The Little Sioux River Near Milford.
* until further notice.
* At 07AM Tuesday the stage was 12.4 feet.
* Flood stage is 12.0 feet.
* Recent activity...The river rose above flood stage on Sunday March
04.
* At stages near 12.0 feet...Minor flooding of low lying agricultural
lands begins.
&&
LAT...LON 4350 9533 4350 9526 4334 9519 4334 9516
4328 9517 4329 9524
$$
IAC041-071824-
/O.CON.KFSD.FL.W.0003.000000T0000Z-180308T0000Z/
/SPWI4.1.ER.180305T1945Z.180306T1315Z.180307T0000Z.NO/
825 AM CST Tue Mar 6 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Wednesday evening.
* At 07AM Tuesday the stage was 11.1 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05.
* Forecast...The river will continue to fall to below flood stage by
Tuesday March 06.
* At stages near 10.0 feet...The right bank overflows, and minor
flooding of the Spencer city park and some rural agricultural areas
begins.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Recent Observed
Stage Stage Time Crest Time
SPLIT ROCK CREEK
JSPM5 91.0 91.66 Tue 8 AM 92.9 Tue Mar 06
LITTLE SIOUX RIVER
MIFI4 12.0 12.41 Tue 7 AM 13.3 Mon Mar 05
SPWI4 10.0 11.07 Tue 7 AM 11.1 Tue Mar 06
ADAMS132
WGUS83 KFSD 062105
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
305 PM CST Tue Mar 6 2018
...The Flood Warning is cancelled for the following rivers in
Minnesota...South Dakota...Iowa...
Split Rock Creek Below Jasper
Little Sioux River Near Milford
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC041-059-062135-
/O.CAN.KFSD.FL.W.0001.000000T0000Z-180306T2105Z/
/MIFI4.1.ER.180305T0227Z.180305T1900Z.180306T1737Z.NO/
305 PM CST Tue Mar 6 2018
The Flood Warning is cancelled for
The Little Sioux River Near Milford.
* At 02PM Tuesday the stage was 11.9 feet.
* Flood stage is 12.0 feet.
* Recent activity...The river rose above flood stage on Sunday March
04 and fell below flood stage early this afternoon.
* At stages near 12.0 feet...Minor flooding of low lying agricultural
lands begins.
&&
LAT...LON 4350 9533 4350 9526 4334 9519 4334 9516
4328 9517 4329 9524
$$
IAC041-080105-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-180309T0523Z/
/SPWI4.1.ER.180305T1945Z.180307T0300Z.180308T0523Z.NO/
305 PM CST Tue Mar 6 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Thursday evening.
* At 02PM Tuesday the stage was 11.4 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05.
* Forecast...The river will crest near 11.6 feet by Tuesday March 06.
The river will fall below flood stage Wednesday March 07.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
MNC133-SDC099-062135-
/O.CAN.KFSD.FL.W.0002.000000T0000Z-180306T2105Z/
/JSPM5.1.ER.180305T1324Z.180306T0800Z.180306T1831Z.NO/
305 PM CST Tue Mar 6 2018
The Flood Warning is cancelled for
The Split Rock Creek Below Jasper.
* At 02PM Tuesday the stage was 90.8 feet.
* Flood stage is 91.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05 and fell below flood stage early this afternoon.
* At stages near 91.0 feet...The lower banks on this stretch of the
creek are overtopped. The low water crossing on 250th Street at the
MN/SD state line is flooded.
&&
LAT...LON 4390 9639 4384 9637 4377 9642 4372 9648
4372 9654 4381 9649
$$
&&
Location Flood Latest Observed Maximum Forecast Recent Observed
Stage Stage Time Stage Time Crest Time
LITTLE SIOUX RIVER
MIFI4 12.0 11.89 Tue 2 PM 13.3 Mon Mar 05
SPWI4 10.0 11.35 Tue 2 PM 11.6 Tue 9 PM
SPLIT ROCK CREEK
JSPM5 91.0 90.76 Tue 2 PM 92.9 Tue Mar 06
MG633
WGUS83 KFSD 071225
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
625 AM CST Wed Mar 7 2018
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...
Big Sioux River above Hawarden
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC149-167-SDC127-081625-
/O.EXT.KFSD.FL.W.0005.000000T0000Z-180309T0313Z/
/HWDI4.1.ER.180307T0026Z.180307T1800Z.180308T2113Z.UU/
625 AM CST Wed Mar 7 2018
...Flood Warning extended until Thursday March 08...
The Flood Warning continues for
The Big Sioux River above Hawarden.
* until Thursday evening.
* At 05AM Wednesday the stage was 20.2 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 19.0 feet.
* Recent activity...The river rose above flood stage on Tuesday March
06.
* Forecast...The river will rise to 20.4 feet by Wednesday March 07.
* At stages near 19.0 feet...Agricultural flooding begins on the
South Dakota side of the river.
&&
LAT...LON 4331 9663 4331 9651 4314 9641 4303 9647
4303 9654 4312 9654
$$
IAC041-081625-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-180310T1800Z/
/SPWI4.1.ER.180305T1945Z.180307T1800Z.180309T1800Z.NO/
625 AM CST Wed Mar 7 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Saturday afternoon.
* At 05AM Wednesday the stage was 11.6 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Recent activity...The river rose above flood stage on Monday March
05.
* Forecast...The river is near crest now.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Maximum Forecast
Stage Stage Time Stage Time
BIG SIOUX RIVER
HWDI4 19.0 20.18 Wed 5 AM 20.4 Wed 12 PM
LITTLE SIOUX RIVER
SPWI4 10.0 11.57 Wed 5 AM 11.6 Wed 12 PM
MG447
WGUS83 KFSD 081041
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
441 AM CST Thu Mar 8 2018
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...
Big Sioux River above Hawarden
...The Flood Warning continues for the following rivers in Iowa...
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC149-167-SDC127-091200-
/O.EXT.KFSD.FL.W.0005.000000T0000Z-180309T1200Z/
/HWDI4.1.ER.180307T0026Z.180308T0631Z.180309T0600Z.UU/
441 AM CST Thu Mar 8 2018
The Flood Warning continues for
The Big Sioux River above Hawarden.
* until Friday morning.
* At 03AM Thursday the stage was 20.6 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 19.0 feet.
* Forecast...The river will continue to fall to below flood stage by
Friday March 09.
* At stages near 19.0 feet...Agricultural flooding begins on the
South Dakota side of the river.
&&
LAT...LON 4331 9663 4331 9651 4314 9641 4303 9647
4303 9654 4312 9654
$$
IAC041-091441-
/O.CON.KFSD.FL.W.0003.000000T0000Z-180310T1800Z/
/SPWI4.1.ER.180305T1945Z.180308T0000Z.180309T1800Z.NO/
441 AM CST Thu Mar 8 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Saturday afternoon.
* At 03AM Thursday the stage was 11.1 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Forecast...The river will slowly fall, dropping below flood stage Friday March 09.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Maximum Forecast Recent Observed
Stage Stage Time Stage Time Crest Time
BIG SIOUX RIVER
HWDI4 19.0 20.63 Thu 3 AM 20.5 Thu 6 AM 20.7 Thu Mar 08
LITTLE SIOUX RIVER
SPWI4 10.0 11.07 Thu 3 AM 11.6 Thu 6 AM 11.8 Wed Mar 07557
WGUS83 KFSD 081448
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
848 AM CST Thu Mar 8 2018
...The Flood Warning continues for the following rivers in Iowa...
South Dakota...
Big Sioux River above Hawarden
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC149-167-SDC127-091424-
/O.EXT.KFSD.FL.W.0005.000000T0000Z-180309T1424Z/
/HWDI4.1.ER.180307T0026Z.180308T0631Z.180309T0824Z.UU/
848 AM CST Thu Mar 8 2018
The Flood Warning continues for
The Big Sioux River above Hawarden.
* until Friday morning.
* At 08AM Thursday the stage was 20.5 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 19.0 feet.
* Forecast...The river will continue to fall to below flood stage by
Friday March 09.
* At stages near 19.0 feet...Agricultural flooding begins on the
South Dakota side of the river.
&&
LAT...LON 4331 9663 4331 9651 4314 9641 4303 9647
4303 9654 4312 9654
$$
IAC041-091849-
/O.EXT.KFSD.FL.W.0003.000000T0000Z-180309T2230Z/
/SPWI4.1.ER.180305T1945Z.180308T0000Z.180308T2230Z.NO/
848 AM CST Thu Mar 8 2018
The Flood Warning continues for
The Little Sioux River At Spencer.
* until Friday afternoon.
* At 08AM Thursday the stage was 10.3 feet.
* Minor flooding is occurring and Minor flooding is forecast.
* Flood stage is 10.0 feet.
* Forecast...The river will continue to fall to below flood stage by
Thursday March 08.
* At stages near 10.0 feet...The right bank overflows, and minor
flooding of the Spencer city park and some rural agricultural areas
begins.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Recent Observed
Stage Stage Time Crest Time
BIG SIOUX RIVER
HWDI4 19.0 20.50 Thu 9 AM 20.7 Thu Mar 08
LITTLE SIOUX RIVER
SPWI4 10.0 10.30 Thu 8 AM 11.8 Wed Mar 07
MG157
WGUS83 KFSD 091126
FLSFSD
Flood Statement
National Weather Service Sioux Falls SD
526 AM CST Fri Mar 9 2018
...The Flood Warning is cancelled for the following rivers in Iowa...
South Dakota...
Big Sioux River above Hawarden
Big Sioux River At Akron
Little Sioux River At Spencer
.The following river forecasts include forecast precipitation through
tonight. Any additional future rains could affect the crest
forecasts.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message...Do not drive cars through flooded areas. the water
depth and road condition may be unsafe.
Additional information is available at
http://water.weather.gov/ahps2/index.php?wfo=fsd
Stay tuned for further updates by listening to NOAA weather radio...
or your local radio and TV stations.
The next scheduled statement will be issued tomorrow morning.
&&
IAC149-167-SDC127-091156-
/O.CAN.KFSD.FL.W.0005.000000T0000Z-180309T1424Z/
/HWDI4.1.ER.180307T0026Z.180308T0631Z.180309T0915Z.UU/
526 AM CST Fri Mar 9 2018
The Flood Warning is cancelled for
The Big Sioux River above Hawarden.
* At 04AM Friday the stage was 18.9 feet.
* Flood stage is 19.0 feet.
* Recent activity...The river fell below flood stage at Friday March
09.
* Forecast...The river will continue to fall to 15.6 feet by 6 AM
Saturday.
* At stages near 19.0 feet...Agricultural flooding begins on the
South Dakota side of the river.
&&
LAT...LON 4331 9663 4331 9651 4314 9641 4303 9647
4303 9654 4312 9654
$$
IAC149-SDC127-091156-
/O.CAN.KFSD.FL.W.0008.000000T0000Z-180310T1213Z/
/AKRI4.1.ER.180308T1345Z.180309T0000Z.180309T0530Z.NO/
526 AM CST Fri Mar 9 2018
The Flood Warning is cancelled for
The Big Sioux River At Akron.
* At 05AM Friday the stage was 15.9 feet.
* Flood stage is 16.0 feet.
* Recent activity...The river rose above flood stage on Thursday
March 08.
* Recent activity...The river fell below flood stage at Thursday
March 08.
* Forecast...The river will continue to fall to 11.8 feet by 6 AM
Saturday.
* At stages near 16.0 feet...Several farm levees are overtopped with
significant flooding of agricultural lands.
&&
LAT...LON 4296 9657 4296 9645 4286 9652 4273 9648
4273 9669 4277 9667
$$
IAC041-091156-
/O.CAN.KFSD.FL.W.0003.000000T0000Z-180309T2230Z/
/SPWI4.1.ER.180305T1945Z.180308T0000Z.180309T0300Z.NO/
526 AM CST Fri Mar 9 2018
The Flood Warning is cancelled for
The Little Sioux River At Spencer.
* At 04AM Friday the stage was 9.6 feet.
* Flood stage is 10.0 feet.
* Recent activity...The river rose above flood stage on Thursday
March 08.
* Recent activity...The river fell below flood stage at Thursday
March 08.
* Forecast...The river will continue to fall to 8.7 feet by 6 AM
Saturday.
* At stages near 9.5 feet...The lower left bank overflows and very
minor flooding of low lands begins.
&&
LAT...LON 4315 9518 4315 9512 4315 9505 4299 9503
4302 9510 4310 9510
$$
&&
Location Flood Latest Observed Maximum Forecast Recent Observed
Stage Stage Time Stage Time Crest Time
BIG SIOUX RIVER
HWDI4 19.0 18.89 Fri 4 AM 18.1 Fri 6 AM 20.7 Thu Mar 08
AKRI4 16.0 15.85 Fri 5 AM 15.7 Fri 6 AM 16.1 Thu Mar 08
LITTLE SIOUX RIVER
SPWI4 10.0 9.65 Fri 4 AM 9.4 Fri 6 AM 11.8 Wed Mar 07What 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 Mar 5, 11:35 AM CST, 1 hour 40 minutes earlier.
Area forecast discussion, Mar 5, 11:35 AM CST, 1 hour 40 minutes before
Area Forecast Discussion
National Weather Service Sioux Falls SD
1135 AM CST Mon Mar 5 2018
.SHORT TERM...(Today through Tuesday)
Issued at 408 AM CST Mon Mar 5 2018
Main forecast concern through the upcoming week will be
focused on the potent late-season storm impacting the central and
northern Plains today through Tuesday. Many questions remain, which
will have a major impact to the forecast. The big question will
revolve around the timing of the colder air advecting into the
forecast area behind the surface low. The second will be how much of
an impact the dry slot will have on precipitation amounts in the
central and eastern portions of the forecast area.
For this morning, a decent amount of elevated instability and shear
has lead to widespread shower and thunderstorm activity. With
analysis showing 500 to 800 j/kg of elevated CAPE headed into the
daylight hours, expect the thunderstorm activity to continue along
and ahead of the surface inverted trough in near the James Valley.
The surface low deepens and it tracks north-northeast, becoming
centered near Brookings/Watertown by midday. Activity will lift to
the north-northeast midday as the surface low advances, with the
bulk of these showers ending as the dry slot moves into the central
and eastern two thirds of the region.
Behind the inverted trough this morning, temperatures remain near
freezing in south central SD, with rain and snow showers as well as
embedded thunderstorms. As the surface low lifts north-northeast,
colder air will continue to wrap behind the low, with below freezing
temperatures expanding eastward to near the I-29 corridor late
morning, and points eastward by early to mid afternoon. One area to
keep an eye on this morning will be the Buffalo Ridge area, where
higher terrain could bring a quicker change to snow than surrounding
areas, and where convective activity may linger past midday.
The upper low catches up with the surface low midday and pivots as
it strengthens. The surface low center stalls in east central SD in
the afternoon then tracks back to the southeast this evening and
tonight, reaching near Storm Lake late tonight. With a dry slot
arriving midday, there may be a period where precipitation shuts off
or becomes very light in the central and eastern portions of the
forecast area, before the secondary push of precipitation in the
form of snow arrives on the back side of the low. In fact, these
locations may see the biggest impact from this storm this
evening/tonight. South central SD is still in line to see primarily
snow from this morning into Tuesday, along with the strongest winds
developing behind behind the low. The storm gradually tracks away
from the region on Tuesday, allowing light snow to taper off through
the day. Winds will remain breezy into Tuesday, so blowing snow will
continue to be a concern. Went ahead and nudged the winds towards
consmos to boost them a little.
Headlines look pretty good as is. In the Blizzard Warning and Winter
Storm Warning, 4 to 8 inches is possible with locally higher
amounts. Amounts will be closer to 3 to 5 inches in the advisory
area near I-29. It does look like our Minnesota counties have to
potential to see a little more snow than previous forecasts,
especially along the Buffalo Ridge where 4 to 6 inches is possible,
so will expand the winter weather advisory to include all of our MN
counties. Northwest Iowa will generally be in the 2 to 4 inch range,
so will not expand here.
.LONG TERM...(Tuesday Night through Sunday)
Issued at 408 AM CST Mon Mar 5 2018
Due to the ongoing late season winter storm, did not make any
adjustments to the extended forecast.
&&
.AVIATION...(For the 18Z TAFS through 18Z Tuesday afternoon)
Issued at 1133 AM CST Mon Mar 5 2018
Band of moderate to heavy snow will gradually shift off to the
east. Could see a brief break in the snow through the afternoon
hours, but as the trowal sets up expect snow to redevelop across
the area. Northwest winds will remain brisk through the period,
creating areas of blowing snow at times.
&&
.FSD WATCHES/WARNINGS/ADVISORIES...
SD...Winter Weather Advisory until 6 PM CST Tuesday for SDZ040-055-
056-062-067-071.
Blizzard Warning until 6 PM CST Tuesday for SDZ050-052-057>061-
063>066-068>070.
Winter Storm Warning until 6 PM CST Tuesday for SDZ038-039-053-
054.
MN...Winter Weather Advisory until 6 PM CST Tuesday for MNZ071-072-
080-081-089-090-097-098.
IA...Winter Weather Advisory until 6 PM CST Tuesday for IAZ001-012-
020-031.
NE...Winter Weather Advisory until 6 PM CST Tuesday for NEZ013-014.
&&
SHORT TERM...
LONG TERM...
AVIATION...BTHazardous weather outlook, Mar 5, 5:07 AM CST, 8 hours 8 minutes before
Hazardous Weather Outlook National Weather Service Sioux Falls SD 507 AM CST Mon Mar 5 2018 NEZ013-SDZ050-052-057>061-063>066-068>070-061115- Dixon-Gregory-Jerauld-Brule-Aurora-Davison-Hanson-McCook- Charles Mix-Douglas-Hutchinson-Turner-Bon Homme-Yankton-Clay SD- 507 AM CST Mon Mar 5 2018 This Hazardous Weather Outlook is for portions of northeast Nebraska, central South Dakota, south central South Dakota, and southeast South Dakota. .DAY ONE...Today through Tuesday Rain will quickly change over to snow this morning as colder air arrives. Freezing rain may briefly fall before changing entirely to snow. Snow will intensify late this afternoon and continue into Tuesday. Winds will be on the increase, gusting as high as 50 mph, leading to white-out conditions at times. Significant drifting of the snow is expected into Tuesday. Total snow accumulations will range from 5 to 10 inches. .DAYS TWO THROUGH SEVEN...Tuesday night through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed however snowfall reports will be appreciated. SDZ038-039-053-054-061115- Beadle-Kingsbury-Sanborn-Miner- 507 AM CST Mon Mar 5 2018 This Hazardous Weather Outlook is for portions of east central South Dakota. .DAY ONE...Today through Tuesday Rain will quickly change over to snow this morning as colder air arrives. Freezing rain may briefly fall before changing entirely to snow. Snow will intensify late this afternoon and continue into Tuesday. Winds will be on the increase, gusting as high as 35 mph, leading to near white-out conditions at times. Significant drifting of the snow is expected into Tuesday. Total snow accumulations of 4 to 8 inches are expected. .DAYS TWO THROUGH SEVEN...Tuesday night through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed however snowfall reports will be appreciated. IAZ001>003-012>014-020>022-031-032-MNZ071-072-080-081-089-090-097- 098-NEZ014-SDZ040-055-056-062-067-071-061115- Lyon IA-Osceola-Dickinson-Sioux-O'Brien-Clay IA-Plymouth-Cherokee- Buena Vista-Woodbury-Ida-Lincoln MN-Lyon MN-Murray-Cottonwood- Nobles-Jackson-Pipestone-Rock-Dakota-Brookings-Lake-Moody- Minnehaha-Lincoln SD-Union- 507 AM CST Mon Mar 5 2018 This Hazardous Weather Outlook is for portions of northwest Iowa, west central Iowa, southwest Minnesota, northeast Nebraska, east central South Dakota, and southeast South Dakota. .DAY ONE...Today through Tuesday Rain will quickly change over to late this morning or early this afternoon as colder air arrives. Freezing rain may briefly fall before changing entirely to snow. A break in precipitation may occur in the afternoon, however snow will resume this evening and into Tuesday. Winds will be on the increase, gusting as high as 35 mph, leading to low visibility at times and drifting of the snow. Total snow accumulations of 2 to 5 inches are expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed however snowfall reports will be appreciated.
In the hours before
Local storm report, Mar 5, 8:53 AM CST, 4 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
853 AM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM SNOW WHITE LAKE 43.73N 98.72W
03/05/2018 M2.0 INCH AURORA SD CO-OP OBSERVER
CO-OP OBSERVER STATION WITS2, WHITE LAKE. SNOW ONGOING.
0700 AM SNOW CHAMBERLAIN 7.5 NNE 43.90N 99.25W
03/05/2018 M1.5 INCH BRULE SD COCORAHS
COCORAHS STATION SD-BL-13, CHAMBERLAIN 7.5. SNOW ONGOING.
NNE.
0700 AM SNOW 1 S HURON 44.35N 98.22W
03/05/2018 M1.5 INCH BEADLE SD COCORAHS
COCORAHS STATION SD-BD-20, 1 S HURON. SNOW ONGOING.
0600 AM SNOW 6 S OACOMA 43.71N 99.38W
03/05/2018 M1.3 INCH BRULE SD COCORAHS
COCORAHS STATION SD-BL-10, 6 S OACOMA. SNOW ONGOING.
0530 AM SNOW CHAMBERLAIN 43.81N 99.33W
03/05/2018 M1.3 INCH BRULE SD COCORAHS
COCORAHS STATION SD-BL-1, CHAMBERLAIN. SNOW ONGOING.
0800 AM SNOW WOONSOCKET 44.05N 98.28W
03/05/2018 M1.0 INCH SANBORN SD CO-OP OBSERVER
CO-OP OBSERVER STATION WOOS2, WOONSOCKET. SNOW ONGOING.
0700 AM SNOW FORESTBURG 44.02N 98.11W
03/05/2018 M0.5 INCH SANBORN SD COCORAHS
COCORAHS STATION SD-SB-2, FORESTBURG. SNOW ONGOING.
0700 AM SNOW SHELDON 43.18N 95.85W
03/05/2018 M0.2 INCH O'BRIEN IA CO-OP OBSERVER
CO-OP OBSERVER STATION SHDI4, SHELDON. SNOW ONGOING.
0700 AM SNOW 8 S DALLAS 43.11N 99.49W
03/05/2018 M0.2 INCH GREGORY SD COCORAHS
COCORAHS STATION SD-GY-1, 8 S DALLAS. SNOW ONGOING.
0800 AM SNOW 2 NE BROOKINGS 44.32N 96.77W
03/05/2018 M0.1 INCH BROOKINGS SD CO-OP OBSERVER
CO-OP OBSERVER STATION BROS2, 2 NE
BROOKINGS. SNOW ONGOING.
&&Local storm report, Mar 5, 9:37 AM CST, 3 hours 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
937 AM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0900 AM SNOW 2 NE ACADEMY 43.49N 99.06W
03/05/2018 M1.0 INCH CHARLES MIX SD CO-OP OBSERVER
CO-OP OBSERVER STATION ACYS2, 2 NE ACADEMY. SNOW ONGOING.
0700 AM SNOW 4 SW BURKE 43.14N 99.35W
03/05/2018 M0.9 INCH GREGORY SD COCORAHS
COCORAHS STATION SD-GY-15, 4 SW BURKE. SNOW ONGOING.
0700 AM SNOW BURKE 2.4 NE 43.21N 99.26W
03/05/2018 M0.5 INCH GREGORY SD COCORAHS
COCORAHS STATION SD-GY-17, BURKE 2.4 NE. SNOW ONGOING.
0630 AM SNOW HOWARD 44.02N 97.52W
03/05/2018 M0.4 INCH MINER SD CO-OP OBSERVER
CO-OP OBSERVER STATION HOWS2, HOWARD. SNOW ONGOING.
0700 AM SNOW ALEXANDRIA 43.65N 97.78W
03/05/2018 M0.2 INCH HANSON SD CO-OP OBSERVER
CO-OP OBSERVER STATION ALXS2, ALEXANDRIA. SNOW ONGOING.
&&Local storm report, Mar 5, 12:22 PM CST, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1222 PM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1153 AM SNOW SLAYTON 43.98N 95.76W
03/05/2018 E3.0 INCH MURRAY MN EMERGENCY MNGR
&&
TRMLocal storm report, Mar 5, 12:30 PM CST, 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1230 PM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1215 PM SNOW TRACY 44.24N 95.62W
03/05/2018 E3.5 INCH LYON MN CO-OP OBSERVER
&&Local storm report, Mar 5, 12:32 PM CST, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1232 PM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1159 AM SNOW HURON 44.37N 98.23W
03/05/2018 M1.3 INCH BEADLE SD OFFICIAL NWS OBS
SNOWFALL AMOUNT 6 AM TO NOON.
1200 PM SNOW SIOUX CITY 42.41N 96.36W
03/05/2018 M1.1 INCH WOODBURY IA OFFICIAL NWS OBS
SNOWFALL AMOUNT 6 AM TO NOON.
1200 PM SNOW SIOUX FALLS NWS 43.59N 96.73W
03/05/2018 M0.7 INCH MINNEHAHA SD OFFICIAL NWS OBS
SNOWFALL AMOUNT 6 AM TO NOON.
&&Local storm report, Mar 5, 12:36 PM CST, 39 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1236 PM CST MON MAR 5 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 PM SNOW MARSHALL 44.45N 95.79W
03/05/2018 M3.0 INCH LYON MN CO-OP OBSERVER
&&The office that day
Everything else NWS Sioux Falls, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 5, 4:56 AM CST | River Flood Warning | FSD | Clay, Dickinson | 34 hr |
Nearby
River Flood Warnings in Iowa, 2018Every river flood warning in 2018
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.