Illinois Severe Flood Warning | Effective 06/30/2026 19:35

Headline: 
Flood Warning issued June 30 at 9:35PM CDT until July 6 at 1:00PM CDT by NWS St Louis MO
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 30, 2026 - 7:35pm
Expires: 
July 2, 2026 - 7:45am
Description: 
...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Grange LD. Illinois River at Valley City. Illinois River at Hardin. Illinois River at Meredosia. 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. * ADDITIONAL DETAILS... - At 9:00 PM CDT Tuesday the stage was 25.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Tuesday was 25.9 feet. - Forecast...The river is expected to fall below flood stage Sunday morning and continue falling to 21.5 feet Tuesday, July 07. - 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