Illinois Severe Flood Warning | Effective 06/29/2026 09:42

Headline: 
Flood Warning issued June 29 at 11:42AM CDT until July 6 at 1:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 29, 2026 - 9:42am
Expires: 
June 30, 2026 - 9:45pm
Description: 
...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. ...The Flood Warning is extended 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 afternoon. * IMPACTS...At 24.0 feet, Extensive wetland acreage south of La Grange begins flooding. * ADDITIONAL DETAILS... - At 11:00 AM CDT Monday the stage was 26.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Monday was 26.2 feet. - Forecast...The river is expected to fall below flood stage Sunday morning and continue falling to 22.4 feet Monday, July 06. - 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