Illinois Flood Warning | Effective 04/28/2026 19:48

Headline: 
Flood Warning issued April 28 at 9:48PM CDT until May 5 at 7:00AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 28, 2026 - 7:48pm
Expires: 
April 30, 2026 - 8:00am
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at La Grange LD. ...The Flood Warning continues for the following rivers in Illinois... Kaskaskia River at Vandalia. Illinois River at Valley City. Illinois River at Hardin. Illinois River at Meredosia. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at La Grange LD. * WHEN...From Wednesday evening to Tuesday morning. * IMPACTS...At 23.0 feet, Adjacent farmland and wetlands begins flooding. Island Road across the river in western Cass County begins flooding. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 22.1 feet. - Forecast...The river is expected to rise above flood stage late tomorrow evening to a crest of 23.4 feet early Friday morning. It will then fall below flood stage early Monday morning. - Flood stage is 23.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Brown, IL
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov