Illinois, Missouri Flood Warning | Effective 04/11/2026 09:33

Headline: 
Flood Warning issued April 11 at 11:33AM CDT until April 19 at 1:00AM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 11, 2026 - 9:33am
Expires: 
April 12, 2026 - 9:45pm
Description: 
...The National Weather Service in St Louis has issued a Flood Warning for the following river in Missouri and Illinois... Mississippi River at Hannibal. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Hannibal. * WHEN...From Monday afternoon to Sunday, April 19. * IMPACTS...At 17.0 feet, John Hay Recreation Area on east side (inside the Illinois Sny Levee) begins flooding. * ADDITIONAL DETAILS... - At 11:15 AM CDT Saturday the stage was 16.7 feet. - Forecast...The river is expected to rise above flood stage Monday afternoon to a crest of 17.5 feet Wednesday morning. - Flood stage is 17.0 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: 
Pike, IL; Marion, MO
Forcast Office: 
NWS St Louis MO