Illinois Flood Warning | Effective 04/15/2026 08:32

Headline: 
Flood Warning issued April 15 at 10:32AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 15, 2026 - 8:32am
Expires: 
April 16, 2026 - 2:45am
Description: 
...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. For the Des Plaines River...including Lincolnshire, Des Plaines, River Forest, Riverside...Moderate flooding is forecast. * WHAT...Moderate flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...From this evening until further notice. * IMPACTS...At 15.0 feet, Structures threatened along IL-22 (Half-Day Road) just east of the river. Multiple structures threatened near and west of US-45 (Milwaukee Avenue) and Deerfield Road. Deerfield Road threatened near the river. Multiple trails inundated in Half-Day Forest Preserve. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 11.5 feet. - Forecast...The river is expected to rise above flood stage this evening and approach flood stage tomorrow morning. - Flood stage is 12.5 feet. - Flood History...This crest compares to a previous crest of 15.1 feet on 09/14/2019. - 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: 
Cook, IL; Lake, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov