Illinois Flood Warning | Effective 04/19/2026 17:54

Headline: 
Flood Warning issued April 19 at 7:54PM CDT until April 21 at 3:24AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 19, 2026 - 5:54pm
Expires: 
April 20, 2026 - 12:00pm
Description: 
...The Flood Warning continues 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 forecasted to continue. * WHERE...Kishwaukee River from Confluence with South Branch Kishwaukee River downstream to the Rock River, including the Perryville gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 13.0 feet, Roadways threatened at Blackhawk Valley Campground south of Rockford. * ADDITIONAL DETAILS... - At 7:30 PM CDT Sunday the stage was 13.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Sunday was 14.2 feet. - Forecast...The river is expected to fall below flood stage tomorrow evening. - 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 Monday afternoon.
Area Description: 
Winnebago, IL
Forcast Office: 
NWS Chicago IL