Flood Warning Illinois | Effective 04/08/2026 19:09

Headline: 
Flood Warning issued April 8 at 9:09PM CDT until April 12 at 1:00AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 8, 2026 - 7:09pm
Expires: 
April 9, 2026 - 1:15pm
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. ...The Flood Warning continues for the following rivers in Indiana... Kankakee River at Dunns Bridge affecting Jasper and Porter Counties. Kankakee River at Shelby affecting Newton and Lake IN Counties. For the Kankakee River at Shelby...Moderate flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until early Sunday morning. * IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee. Boathouses threatened along the river in Cary. * ADDITIONAL DETAILS... - At 8:30 PM CDT Wednesday the stage was 9.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Wednesday was 9.7 feet. - Forecast...The river is near crest and will fall below flood stage Saturday evening. - Flood stage is 9.5 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 Thursday afternoon.
Area Description: 
Kane, IL; Lake, IL; McHenry, IL
Forcast Office: 
NWS Chicago IL