Illinois, Missouri Flood Warning | Effective 04/29/2026 09:54

Headline: 
Flood Warning issued April 29 at 11:54AM CDT until May 6 at 3:24PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 29, 2026 - 9:54am
Expires: 
April 30, 2026 - 10:00pm
Description: 
...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Mel Price LD. Mississippi River at Alton. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Chester. Mississippi River near Herculaneum. Mississippi River at St. Louis. Mississippi River at Grafton. 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 Wednesday afternoon. * IMPACTS...At 33.5 feet, Water Street in Chester begins flooding. * ADDITIONAL DETAILS... - At 11:30 AM CDT Wednesday the stage was 28.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:30 AM CDT Wednesday was 28.0 feet. - Forecast...The river is expected to rise to a crest of 34.0 feet Saturday morning. It will then fall below flood stage late Tuesday morning. - Flood stage is 27.0 feet.
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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