Illinois Flood Warning | Effective 05/20/2026 16:43

Headline: 
Flood Warning issued May 20 at 6:43PM CDT until May 22 at 7:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 20, 2026 - 4:43pm
Expires: 
May 22, 2026 - 4:45am
Description: 
...The Flood Warning continues 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 Friday evening. * ADDITIONAL DETAILS... - At 6:30 PM CDT Wednesday the stage was 17.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:30 PM CDT Wednesday was 17.9 feet. - Forecast...The river is expected to fall below flood stage early tomorrow afternoon and continue falling to 16.2 feet Wednesday, May 27. - Flood stage is 16.5 feet.
Instruction: 
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