Flood Warning Illinois | Effective 04/04/2026 07:59

Headline: 
Flood Warning issued April 4 at 9:59AM CDT until April 6 at 12:00PM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 4, 2026 - 7:59am
Expires: 
April 5, 2026 - 2:00am
Description: 
...The Flood Warning is extended 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 occurring and 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 early Monday afternoon. * IMPACTS...At 13.0 feet, Roadways threatened at Blackhawk Valley Campground south of Rockford. * ADDITIONAL DETAILS... - At 9:30 AM CDT Saturday the stage was 12.4 feet. - Forecast...The river is expected to rise to a crest of 13.8 feet just after midnight tonight. It will then fall below flood stage Monday morning. - 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