Illinois Severe Flood Warning | Effective 06/17/2026 18:56

Headline: 
Flood Warning issued June 17 at 8:56PM CDT until June 21 at 5:00PM CDT by NWS Lincoln IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
June 17, 2026 - 6:56pm
Expires: 
June 18, 2026 - 11:00am
Description: 
...The National Weather Service in Lincoln IL has issued a Flood Warning for the following rivers in Illinois... Sangamon River at Monticello affecting Piatt County. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is forecast. * WHERE...Sangamon River at Monticello. * WHEN...From late tonight to Sunday afternoon. * IMPACTS...At 13.0 feet, Flooding of agricultural areas begins. * ADDITIONAL DETAILS... - At 8:00 PM CDT Wednesday the stage was 12.4 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 13.8 feet Friday morning. It will then fall below flood stage late Sunday morning. - Flood stage is 13.0 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: 
Piatt, IL
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov