128 

WGUS43 KFSD 050132

FLWFSD



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Flood Warning

National Weather Service Sioux Falls SD

832 PM CDT Thu Jun 4 2026



...Observed flooding changed from Minor to Moderate severity for the 

following rivers in South Dakota...



  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.



Additional forecast information is available at 

www.weather.gov/siouxfalls.



The next statement will be issued by Friday evening.



&&



SDC011-057-060345-

/O.CON.KFSD.FL.W.0001.000000T0000Z-000000T0000Z/

/BSES2.2.ER.260604T1633Z.260605T0100Z.000000T0000Z.UU/

832 PM CDT Thu Jun 4 2026



...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 8:00 PM CDT Thursday the stage was 1645.7 feet.

  - Recent Activity...The maximum river stage in the 24 hours

    ending at 8:00 PM CDT Thursday was 1645.7 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 1645.7 Thu 8 pm   MSG   MSG   MSG          





&&



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





$$



SG