616
WGUS83 KFSD 220118
FLSFSD

Flood Statement
National Weather Service Sioux Falls SD
818 PM CDT Thu Aug 21 2025

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

  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.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Additional forecast information is available at
www.weather.gov/siouxfalls.

The next statement will be issued Friday evening.

&&

SDC011-230330-
/O.CON.KFSD.FL.W.0015.000000T0000Z-000000T0000Z/
/BRCS2.2.ER.250818T0245Z.250820T1500Z.000000T0000Z.NO/
818 PM CDT Thu Aug 21 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 7:45 PM CDT Thursday the stage was 9.9 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:45 PM CDT Thursday was 10.2 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    9.9    Thu 7 pm   MSG   MSG   MSG


&&

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


$$

SDC011-057-230330-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BSES2.2.ER.250817T0740Z.250819T0300Z.000000T0000Z.UU/
818 PM CDT Thu Aug 21 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 1644.0 feet, significant flooding of crop and pasture
  land begins.

* ADDITIONAL DETAILS...
  - At 8:00 PM CDT Thursday the stage was 1644.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 8:00 PM CDT Thursday was 1645.3 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 1644.6 Thu 8 pm   MSG   MSG   MSG


&&

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


$$

JH