695
WGUS43 KFSD 180913
FLWFSD

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Sioux Falls SD
413 AM CDT Mon Aug 18 2025

...The National Weather Service in Sioux Falls SD has issued a Flood
Warning for the following rivers in South Dakota...

  Big Sioux River near Bruce affecting Brookings County.

...Observed flooding changed from Minor to Moderate severity for the
following rivers in South Dakota...

  Big Sioux River near Estelline affecting Brookings and Hamlin
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

The next statement will be issued by Tuesday morning.

&&

SDC011-191115-
/O.NEW.KFSD.FL.W.0015.250818T0913Z-000000T0000Z/
/BRCS2.1.ER.250818T0245Z.250818T0845Z.000000T0000Z.NO/
413 AM CDT Mon Aug 18 2025

...FLOOD WARNING IN EFFECT FROM EARLY THIS MORNING UNTIL FURTHER
NOTICE...

* WHAT...Minor flooding is occurring.

* WHERE...Big Sioux River near Bruce.

* WHEN...From early this morning until further notice.

* IMPACTS...At 8.0 feet, The lower banks on the left side of the
  river overflow.

* ADDITIONAL DETAILS...
  - At 3:45 AM CDT Monday the stage was 8.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 3:45 AM CDT Monday was 8.4 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    8.4    Mon 3 am   MSG   MSG   MSG


&&

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


$$

SDC011-057-191115-
/O.CON.KFSD.FL.W.0014.000000T0000Z-000000T0000Z/
/BSES2.2.ER.250817T0740Z.250818T0900Z.000000T0000Z.UU/
413 AM CDT Mon Aug 18 2025

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

* WHAT...Moderate 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 4:00 AM CDT Monday the stage was 1645.6 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 4:00 AM CDT Monday was 1645.6 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 1645.6 Mon 4 am   MSG   MSG   MSG


&&

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


$$

JM