Illinois, Missouri Flood Warning | Effective 04/28/2026 20:02

Headline: 
Flood Warning issued April 28 at 10:02PM CDT until May 6 at 4:49PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 28, 2026 - 8:02pm
Expires: 
April 30, 2026 - 8:15am
Description: 
...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Mel Price LD. Mississippi River at Grafton. Mississippi River at Canton. Mississippi River at Winfield. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Chester. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River near Herculaneum. Mississippi River at St. Louis. Mississippi River at Alton. Mississippi River at Saverton. ...The Flood Warning is cancelled for the following rivers in Illinois...Missouri... Mississippi River at Quincy. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Chester. * WHEN...Until Wednesday, May 06. * IMPACTS...At 34.7 feet, The north parking lot at Menard Correctional Center begins flooding. * ADDITIONAL DETAILS... - At 9:30 PM CDT Tuesday the stage was 26.6 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 34.4 feet Saturday morning. It will then fall below flood stage Tuesday, May 05. - Flood stage is 27.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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: 
Jackson, IL; Randolph, IL; Perry, MO; Ste. Genevieve, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov