Illinois, Missouri Flood Warning | Effective 05/02/2026 18:19

Headline: 
Flood Warning issued May 2 at 8:19PM CDT until May 5 at 11:30PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
May 2, 2026 - 6:19pm
Expires: 
May 4, 2026 - 6:30am
Description: 
...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Mel Price LD. Mississippi River at Chester. Mississippi River at Grafton. Mississippi River at Louisiana. ...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Winfield. Mississippi River at Clarksville. 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 Grafton. * WHEN...Until Tuesday evening. * IMPACTS...At 21.5 feet, In Portage des Sioux, MO, Le Sieur Street leading to the Marina and to Our Lady of the River Statue is flooded. * ADDITIONAL DETAILS... - At 8:00 PM CDT Saturday the stage was 21.7 feet and falling. - Recent Activity...The river rose above flood stage on April 19, cresting near 22.9 feet on May 1. - Forecast...The river is expected to fall below flood stage Monday afternoon and continue falling over the following days. - Flood stage is 20.0 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: 
Jersey, IL; St. Charles, MO
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov