Illinois Flood Warning - Severe | Effective 06/15/2026 18:48

Headline: 
Flood Warning issued June 15 at 8:48PM CDT until June 16 at 10:00PM CDT by NWS Lincoln IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
June 15, 2026 - 6:48pm
Expires: 
June 16, 2026 - 11:00am
Description: 
...The Flood Warning is extended 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 occurring and minor flooding is forecast. * WHERE...Sangamon River at Monticello. * WHEN...Until late tomorrow evening. * IMPACTS...At 13.0 feet, Flooding of agricultural areas begins. * ADDITIONAL DETAILS... - At 8:00 PM CDT Monday the stage was 13.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Monday was 13.7 feet. - Forecast...The river is expected to fall below flood stage tomorrow afternoon and continue falling to 7.6 feet Monday, June 22. - 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