Illinois Flood Warning | Effective 04/16/2026 09:01

Headline: 
Flood Warning issued April 16 at 11:01AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
April 16, 2026 - 9:01am
Expires: 
April 17, 2026 - 3:15am
Description: 
...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Rock River at Rockton affecting Winnebago County. * WHAT...Moderate flooding is forecast. * WHERE...Rock River from Prairie Hill Road downstream to Swanson Road in Roscoe, including the Rockton gauge. * WHEN...From this afternoon until further notice. * IMPACTS...At 10.5 feet, Edgemere Terrace threatened near Roscoe. At 12.0 feet, Multiple low-lying roads threatened along the river in Roscoe. * ADDITIONAL DETAILS... - At 10:30 AM CDT Thursday the stage was 9.6 feet. - Forecast...The river is expected to rise above flood stage this afternoon and continue rising to a crest near 12.0 feet on Saturday. - Flood stage is 10.0 feet. - Flood History...This crest compares to a previous crest of 12.2 feet on 09/09/2018. - 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