Flood Statement
Issued by NWS Sioux Falls, SD

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404
WGUS83 KFSD 271415
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
915 AM CDT Wed Aug 27 2025

...The Flood Warning continues for the following rivers in South
Dakota...

  James River near Forestburg affecting Sanborn County.

  Big Sioux River near Bruce affecting Brookings County.

  Big Sioux River near Estelline affecting Hamlin and Brookings
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don`t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

River forecasts include observed precipitation plus forecast
precipitation over the next 24 hours.

The next statement will be issued by Thursday morning.

&&

SDC111-281615-
/O.CON.KFSD.FL.W.0017.000000T0000Z-250831T1200Z/
/FORS2.1.ER.250825T0100Z.250827T0230Z.250830T1200Z.NO/
915 AM CDT Wed Aug 27 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...James River near Forestburg.

* WHEN...Until Sunday morning.

* IMPACTS...At 12.0 feet, Significant portions of the floodplain
  begin to flood and a couple county or township roads may begin to
  flood.

* ADDITIONAL DETAILS...
  - At 8:15 AM CDT Wednesday the stage was 12.3 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:15 AM CDT Wednesday was 12.3 feet.
  - Forecast...The river is expected to fall below flood stage
    Saturday and continue falling to 10.9 feet Wednesday,
    September 03.
  - Flood stage is 12.0 feet.
  - Stay up to date with the latest river observations and
    forecasts at: www.water.noaa.gov

&&

           Fld    Observed          Forecasts (7 am CDT)
Location   Stg    Stg    Day/Time   Thu   Fri   Sat

James River
Forestburg 12.0   12.3   Wed 8 am   12.2  12.1  12.0


&&

LAT...LON 4420 9819 4420 9807 4401 9804 4391 9794
      4385 9794 4385 9806 4390 9806 4398 9814


$$

SDC011-281615-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/BRCS2.2.ER.250818T0245Z.250820T1500Z.000000T0000Z.NO/
915 AM CDT Wed Aug 27 2025

...FLOOD WARNING 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 AM CDT Wednesday the stage was 8.9 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:45 AM CDT Wednesday was 9.0 feet.
  - Forecast...No forecast is available for this location.
  - Flood stage is 8.0 feet.
  - Stay up to date with the latest river observations and
    forecasts at: www.water.noaa.gov

&&

               Fld    Observed          Forecasts (unknown time)
Location       Stg    Stg    Day/Time   d1    d2    d3

Big Sioux River
Bruce          8.0    8.9    Wed 8 am   MSG   MSG   MSG


&&

LAT...LON 4450 9690 4450 9684 4449 9685 4440 9689
      4433 9687 4433 9692 4442 9693


$$

SDC011-057-281615-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BSES2.2.ER.250817T0740Z.250819T0300Z.000000T0000Z.UU/
915 AM CDT Wed Aug 27 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor 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 AM CDT Wednesday the stage was 1644.8 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 9:00 AM CDT Wednesday was 1645.0 feet.
  - Forecast...No forecast is available for this location.
  - Flood stage is 1644.0 feet.
  - Stay up to date with the latest river observations and
    forecasts at: www.water.noaa.gov

&&

               Fld    Observed          Forecasts (unknown time)
Location       Stg    Stg    Day/Time   d1    d2    d3

Big Sioux River
Estelline      1644.0 1644.8 Wed 9 am   MSG   MSG   MSG


&&

LAT...LON 4462 9700 4463 9696 4450 9684 4450 9690


$$

Kalin