Flood Warning Illinois | Effective 04/03/2026 13:01

Headline: 
Flood Warning issued April 3 at 3:01PM CDT until April 5 at 4:00PM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 3, 2026 - 1:01pm
Expires: 
April 4, 2026 - 7:15am
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 Sunday afternoon. * IMPACTS...At 13.0 feet, Roadways threatened at Blackhawk Valley Campground south of Rockford. * ADDITIONAL DETAILS... - At 2:30 PM CDT Friday the stage was 11.8 feet. - Forecast...The river is expected to rise above flood stage this evening to a crest of 12.7 feet tomorrow evening. It will then fall below flood stage late Sunday 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 Saturday morning.
Area Description: 
Winnebago, IL
Forcast Office: 
NWS Chicago IL