Illinois Flood Warning - Severe | Effective 05/21/2026 18:00

Headline: 
Flood Warning issued May 21 at 8:00PM CDT until May 24 at 9:00AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 21, 2026 - 6:00pm
Expires: 
May 23, 2026 - 6:00am
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Kaskaskia River at Carlyle. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Kaskaskia River at Carlyle. * WHEN...Until Sunday morning. * IMPACTS...At 16.5 feet, Near this height, downstream agricultural fields begin flooding. * ADDITIONAL DETAILS... - At 7:30 PM CDT Thursday the stage was 16.7 feet. - Forecast...The river is expected to rise to a crest of 16.7 feet just after midnight tonight. It will then fall below flood stage early Saturday morning. - Flood stage is 16.5 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. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Area Description: 
Clinton, IL
Forcast Office: 
NWS St Louis MO