Illinois Severe Flood Warning | Effective 08/15/2026 08:11

Headline: 
Flood Warning issued August 15 at 10:11AM CDT by NWS Lincoln IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
August 15, 2026 - 8:11am
Expires: 
August 16, 2026 - 12:15am
Description: 
...The National Weather Service in Lincoln IL has issued a Flood Warning for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...From late tonight until further notice. * ADDITIONAL DETAILS... - At 9:45 AM CDT Saturday the stage was 12.6 feet. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to 17.3 feet Saturday, August 22. Additional rises are possible thereafter. - 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
Sender: 
w-nws.webmaster@noaa.gov