Illinois, Missouri Flood Warning | Effective 04/21/2026 19:26

Headline: 
Flood Warning issued April 21 at 9:26PM CDT until April 24 at 7:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 21, 2026 - 7:26pm
Expires: 
April 23, 2026 - 7:30am
Description: 
...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Chester. Mississippi River at Canton. Mississippi River at Grafton. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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...Mississippi River at Chester. * WHEN...Until Friday evening. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 27.8 feet. - Forecast...The river is near crest now. It will then fall below flood stage early Thursday afternoon. - Flood stage is 27.0 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: 
Jackson, IL; Randolph, IL; Perry, MO; Ste. Genevieve, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov