Illinois Flood Warning | Effective 04/19/2026 09:10

Headline: 
Flood Warning issued April 19 at 11:10AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 19, 2026 - 9:10am
Expires: 
April 20, 2026 - 3:15am
Description: 
...The Flood Warning continues for the following rivers in Illinois... Rock River at Byron affecting Ogle County. Rock River at Rockton affecting Winnebago County. Rock River at Latham Park affecting Winnebago County. * WHAT...Moderate flooding is occurring and moderate flooding is forecasted to occur. * WHERE...Rock River from Swanson Road in Roscoe downstream to Shorewood Park in Loves Park, including the Latham Park gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, low-lying sections of Shorewood Park are inundated in Loves Park. * ADDITIONAL DETAILS... - At 10:30 AM CDT Sunday, the stage was 11.9 feet. - Forecast...The river is expected to rise to a crest of 12.2 feet tomorrow evening and remain in Moderate Flood Stage until further notice. - 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 late tonight.
Area Description: 
Winnebago, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov