Illinois Flood Warning - Severe | Effective 06/12/2026 08:57

Headline: 
Flood Warning issued June 12 at 10:57AM CDT until June 13 at 1:00AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
June 12, 2026 - 8:57am
Expires: 
June 12, 2026 - 11:00pm
Description: 
...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. For the Kishwaukee River...including Perryville...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Kishwaukee River from Confluence with South Branch Kishwaukee River downstream to the Rock River, including the Perryville gauge. * WHEN...Until just after midnight tonight. * IMPACTS...At 12.0 feet, Water overtops low-lying banks in Blackhawk Springs Forest Preserve and in south Rockford near Chicago Rockford International Airport. Trails threatened at Blackhawk Springs Forest Preserve. * ADDITIONAL DETAILS... - At 10:30 AM CDT Friday the stage was 11.5 feet. - Recent Activity...The river climbed overnight to near flood stage. - Forecast...The river is expected to crest near flood stage this afternoon. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.
Area Description: 
Winnebago, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov