Illinois Flood Warning | Effective 04/19/2026 08:50

Headline: 
Flood Warning issued April 19 at 10:50AM CDT until April 19 at 7:00PM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 19, 2026 - 8:50am
Expires: 
April 19, 2026 - 5:00pm
Description: 
...The Flood Warning continues for the following rivers in Illinois... Kishwaukee River near Perryville affecting Winnebago County. Kishwaukee River at Belvidere affecting Boone and Winnebago Counties. * WHAT...Minor flooding is occurring and expected to continue. * WHERE...Kishwaukee River from County Line Road downstream to confluence with South Branch Kishwaukee River, including the Belvidere gauge. * WHEN...Until this evening. * IMPACTS...At 9.5 feet, Holiday Acres Campground threatened east of Belvidere. Northwoods RV Resort is threatened in Garden Prairie. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday, the stage was 9.3 feet. - Forecast...The river is expected to fall below flood stage late this afternoon. - Flood stage is 9.0 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 this evening.
Area Description: 
Boone, IL; Winnebago, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov