Illinois Severe Flood Warning | Effective 06/18/2026 18:46

Headline: 
Flood Warning issued June 18 at 8:46PM CDT by NWS Lincoln IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 18, 2026 - 6:46pm
Expires: 
June 19, 2026 - 11:00am
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Putnam and Marshall Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Tazewell and Woodford Counties. Illinois River at Beardstown affecting Cass, Schuyler, Morgan and Brown Counties. Illinois River near Havana affecting Cass, Fulton and Mason Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * IMPACTS...At 19.5 feet, Access road to Anderson Lake north campground closed. * ADDITIONAL DETAILS... - At 7:45 PM CDT Thursday the stage was 17.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Thursday was 17.8 feet. - Forecast...The river is expected to rise to a crest of 18.5 feet early Sunday afternoon. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Instruction: 
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Area Description: 
Cass, IL; Fulton, IL; Mason, IL
Forcast Office: 
NWS Lincoln IL