Illinois Severe Flood Warning | Effective 06/30/2026 07:37

Headline: 
Flood Warning issued June 30 at 9:37AM CDT until July 6 at 7:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 30, 2026 - 7:37am
Expires: 
July 1, 2026 - 7:45pm
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. ...The Flood Warning continues for the following rivers in Illinois... 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 La Grange LD. * WHEN...Until Monday evening. * IMPACTS...At 24.0 feet, Extensive wetland acreage south of La Grange begins flooding. * ADDITIONAL DETAILS... - At 9:00 AM CDT Tuesday the stage was 25.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 AM CDT Tuesday was 26.0 feet. - Forecast...The river is expected to rise to a crest of 25.8 feet this afternoon. It will then fall below flood stage early Sunday afternoon. - Flood stage is 23.0 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: 
Brown, IL
Forcast Office: 
NWS St Louis MO