Illinois Severe Flood Warning | Effective 06/21/2026 19:46

Headline: 
Flood Warning issued June 21 at 9:46PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 21, 2026 - 7:46pm
Expires: 
June 23, 2026 - 8:00am
Description: 
...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Louisiana. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. 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...Illinois River at Meredosia. * WHEN...Until further notice. * IMPACTS...At 20.0 feet, Beach Road just north of Shady Acres floods near this height. * ADDITIONAL DETAILS... - At 9:30 PM CDT Sunday the stage was 17.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM CDT Sunday was 17.9 feet. - Forecast...The river is expected to rise to 20.8 feet Saturday morning. Additional rises are possible thereafter. - 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: 
Morgan, IL; Pike, IL
Forcast Office: 
NWS St Louis MO