Alert archive / Iowa / River Flood Warnings in 2016

River Flood Warning 21, NWS Sioux Falls, SD

May 10, 2016Woodbury County, Iowa

NWS Sioux Falls, SD issued this river flood warning at May 10, 2016, 2:16 PM CDT for Woodbury County, Iowa. It took effect at May 11, 2016, 12:20 AM CDT. It was in force for 26 hr.

The area

The outline as issued.

The facts

Issued
May 10, 2016, 2:16 PM CDT (19:16 UTC)
In effect from
May 11, 2016, 12:20 AM CDT
Expired
May 12, 2016, 2:30 AM CDT
In force
26 hr
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Flood severity
Minor

County Woodbury County, IA

The radar

The Omaha radar (KOAX), 127 km from the middle of the area, began a volume at 19:14 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 Correctionville (CRRI4). The gauge peaked at 17.48 ft at May 10, 2016, 11:00 AM CDT.

actionminormoderate141618202205/1005/1105/1205/13
Action stage
17 ft
Minor stage
19 ft
Moderate stage
21 ft
Major stage
23 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06606600, 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.

683 
WGUS43 KFSD 101916
FLWFSD
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
216 PM CDT TUE MAY 10 2016

...The National Weather Service in Sioux Falls has issued a flood 
warning for the following rivers in Iowa...

  Ocheyedan River Near Spencer
  Little Sioux River Near Correctionville
 
.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://www.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.

&&

IAC041-112316-
/O.NEW.KFSD.FL.W.0020.160511T0600Z-160512T0600Z/
/SPOI4.1.ER.160511T0600Z.160511T0600Z.160511T0600Z.NO/
216 PM CDT TUE MAY 10 2016

The National Weather Service in Sioux Falls has issued a 

* Flood Warning for 
  The Ocheyedan River Near Spencer.
* from late tonight to late Wednesday night.
* At 01PM Tuesday the stage was 7.7 feet.
* Minor flooding is forecast.
* Flood stage is 8.0 feet.
* Forecast...The river is expected to rise to near flood stage 1 AM 
  Wednesday.
* At stages near 8.0 feet...Minor flooding of pasture land begins. 

&&
 
LAT...LON 4318 9540 4318 9533 4315 9520 4313 9513
          4312 9524 4315 9540

$$

IAC193-112316-
/O.NEW.KFSD.FL.W.0021.160511T0520Z-160512T0730Z/
/CRRI4.1.ER.160511T0520Z.160511T0600Z.160511T0730Z.NO/
216 PM CDT TUE MAY 10 2016

The National Weather Service in Sioux Falls has issued a 

* Flood Warning for 
  The Little Sioux River Near Correctionville.
* from late tonight to late Wednesday night.
* At 02PM Tuesday the stage was 17.4 feet.
* Minor flooding is forecast.
* Flood stage is 19.0 feet.
* Forecast...Rise above flood stage by 12 AM Wednesday and crest near
  19.1 feet by Wednesday May 11.the river will fall below flood stage
  by Wednesday May 11.
* At stages near 19.0 feet...Some homes and businesses southwest of 
the gaging location will begin flooding. 

&&
 
LAT...LON 4256 9578 4256 9569 4233 9586 4221 9590
          4221 9598 4236 9592

$$

&& 
LOCATION FLOOD   LATEST OBSERVED     MAXIMUM FORECAST  RECENT OBSERVED
         STAGE   STAGE  TIME          STAGE  TIME       CREST TIME

OCHEYEDAN RIVER
SPOI4    8.0    7.69 Tue 2 PM          8.0  Wed 1 AM   

LITTLE SIOUX RIVER
CRRI4    19.0   17.39 Tue 2 PM       19.1   Wed 1 AM
1 follow-up statement
854 
WGUS83 KFSD 110258
FLSFSD
FLOOD STATEMENT
NATIONAL WEATHER SERVICE SIOUX FALLS SD
958 PM CDT TUE MAY 10 2016

...The Flood Warning is cancelled for the following rivers in Iowa...

  Little Sioux River Near Correctionville

...The Flood Warning continues for the following rivers in Iowa...

  Ocheyedan River Near Spencer
  Little Sioux River Above Spencer
  Little Sioux River At Spencer
  Little Sioux River At Cherokee
  Little Sioux River Near Milford
  Little Sioux River At Linn Grove
 
.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://www.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.

&&

IAC041-120658-
/O.EXT.KFSD.FL.W.0020.160511T0217Z-160514T0000Z/
/SPOI4.1.ER.160511T0122Z.160511T0600Z.160513T0000Z.NO/
958 PM CDT TUE MAY 10 2016

...Flood Warning extended until 7 PM Friday... 
The Flood Warning continues for
  The Ocheyedan River Near Spencer.
* Until Friday evening.
* At 8PM Tuesday the stage was 8.0 feet.
* Flood stage is 8.0 feet.
* Recent activity...The river rose above flood stage at 7 PM
  Tuesday May 10.
* Forecast...The river will crest near 8.1 feet by Thursday Morning
  May 12. The river will fall below flood stage Thursday evening.
* At stages near 8.0 feet...Minor flooding of pasture land begins. 

&&
 
LAT...LON 4318 9540 4318 9533 4315 9520 4313 9513
          4312 9524 4315 9540

$$

IAC041-059-120658-
/O.CON.KFSD.FL.W.0018.000000T0000Z-000000T0000Z/
/MIFI4.1.ER.160510T0810Z.160510T1800Z.000000T0000Z.NO/
958 PM CDT TUE MAY 10 2016

The Flood Warning continues for
  The Little Sioux River Near Milford.
* Until further notice.
* At 8PM Tuesday the stage was 12.5 feet.
* Flood stage is 12.0 feet.
* Recent activity...The river rose above flood stage at 3 AM
  Tuesday May 10.
* 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

$$

IAC041-059-120658-
/O.EXT.KFSD.FL.W.0019.160511T1800Z-160515T0000Z/
/LSSI4.1.ER.160511T1800Z.160513T0000Z.160514T1800Z.UU/
958 PM CDT TUE MAY 10 2016

...Flood Warning extended until 7 PM Saturday... 
The Flood Warning continues for
  The Little Sioux River Above Spencer.
* From Wednesday afternoon to Saturday evening.
* At 8PM Tuesday the stage was 9.9 feet.
* Flood stage is 10.0 feet.
* At stages near 10.0 feet...Minor flooding of agricultural lands 
  begins. 

&&
 
LAT...LON 4329 9524 4328 9517 4324 9523 4315 9512
          4315 9518 4324 9529

$$

IAC041-120658-
/O.EXT.KFSD.FL.W.0007.000000T0000Z-160516T1800Z/
/SPWI4.1.ER.160427T2052Z.160502T1215Z.160515T1800Z.NO/
958 PM CDT TUE MAY 10 2016

The Flood Warning continues for
  The Little Sioux River At Spencer.
* Until Monday afternoon.
* At 8PM Tuesday the stage was 11.2 feet.
* Flood stage is 10.0 feet.
* Forecast...The river will crest near 11.8 feet by 1 PM Thursday
  May 12. The river will fall below flood stage Sunday evening May 15.
* 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

$$

IAC021-041-120658-
/O.CON.KFSD.FL.W.0008.000000T0000Z-000000T0000Z/
/LNNI4.2.ER.160426T0325Z.160503T0445Z.000000T0000Z.NO/
958 PM CDT TUE MAY 10 2016

The Flood Warning continues for
  The Little Sioux River At Linn Grove.
* Until further notice.
* At 9PM Tuesday the stage was 18.5 feet.
* Flood stage is 18.0 feet.
* Forecast...The river will crest near 18.8 feet by early 
  Saturday morning May 14 then begin slowly falling.
* At stages near 18.5 feet...The city park in Sioux Rapids is 
  flooded. 

&&
 
LAT...LON 4302 9510 4299 9503 4287 9512 4288 9536
          4296 9543 4293 9520

$$

IAC035-120658-
/O.EXT.KFSD.FL.W.0017.000000T0000Z-160515T0900Z/
/CHKI4.1.ER.160510T0318Z.160512T0600Z.160514T0900Z.NO/
958 PM CDT TUE MAY 10 2016

...Flood Warning extended until 4 AM Sunday... 
The Flood Warning continues for
  The Little Sioux River At Cherokee.
* Until late Saturday night.
* At 8PM Tuesday the stage was 17.6 feet.
* Flood stage is 17.0 feet.
* Recent activity...The river rose above flood stage at 11 PM
  Monday May 9.
* Forecast...The river will crest near 17.9 feet by early morning
  Thursday May 12. The river will fall below flood stage by early 
  morning Saturday May 14.
* At stages near 18.0 feet...Cherokee city park begins to flood on 
  the south bank of the river. 

&&
 
LAT...LON 4296 9543 4291 9539 4265 9557 4256 9569
          4256 9578 4270 9564

$$

IAC193-110328-
/O.CAN.KFSD.FL.W.0021.000000T0000Z-160512T0730Z/
/CRRI4.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
958 PM CDT TUE MAY 10 2016

The Flood Warning is cancelled for
  The Little Sioux River Near Correctionville.
* At PM Tuesday the stage was 17.0 feet.
* Flood stage is 19.0 feet.
* Forecast...The river will crest below flood stage at 17.5 feet by 
  7 PM Wednesday May 11.
* At stages near 19.0 feet...Some homes and businesses southwest of 
  the gaging location will begin flooding. 

&&
 
LAT...LON 4256 9578 4256 9569 4233 9586 4221 9590
          4221 9598 4236 9592

$$

&& 
LOCATION FLOOD  LATEST OBSERVED  MAXIMUM FORECAST  RECENT OBSERVED
         STAGE  STAGE  TIME      STAGE  TIME       CREST TIME

OCHEYEDAN RIVER
SPOI4    8.0     8.04 Tue 9 PM     8.1  Wed 1 AM    9.7  Sun May 1

LITTLE SIOUX RIVER
MIFI4    12.0   12.49 Tue 8 PM                     14.0  Tue May 3
LSSI4    10.0    9.91 Tue 8 PM    10.8  Thu 7 PM   11.1  Mon May 2
SPWI4    10.0   11.16 Tue 8 PM    11.8  Thu 1 PM   13.1  Mon May 2
LNNI4    18.0   18.50 Tue 9 PM    18.8  Fri 1 AM   20.2  Mon May 2
CHKI4    17.0   17.60 Tue 8 PM    17.9  Thu 1 AM   19.8  Tue May 3
CRRI4    19.0   16.96 Tue 9 PM    17.5  Wed 7 PM   17.8  Wed May 4

TRM

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 8:51 PM CDTFlash Flood WarningFSDCherokee5 hr
May 9, 9:11 PM CDTRiver Flood WarningFSDCherokee4 days
May 10, 7:36 AM CDTRiver Flood WarningFSDClay, Dickinson6 days
May 10, 7:36 AM CDTRiver Flood WarningFSDClay, Dickinson3 days
May 10, 2:16 PM CDTRiver Flood WarningFSDClay3 days

Nearby

River Flood Warnings in Iowa, 2016Every river flood warning in 2016

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.