South Dakota Flood Warning - Severe | Effective 06/04/2026 18:32

Headline: 
Flood Warning issued June 4 at 8:32PM CDT by NWS Sioux Falls SD
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
June 4, 2026 - 6:32pm
Expires: 
June 5, 2026 - 8:45pm
Description: 
...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. * 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
Instruction: 
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.
Area Description: 
Brookings, SD; Hamlin, SD
Forcast Office: 
NWS Sioux Falls SD