Headline:
Flood Warning issued April 17 at 10:57PM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 17, 2026 - 8:57pm
Expires:
April 18, 2026 - 3:00pm
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...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Rock River from Prairie Hill Road downstream to Swanson
Road in Roscoe, including the Rockton gauge.
* WHEN...Until further notice.
* IMPACTS...At 12.0 feet, Multiple low-lying roads threatened along
the river in Roscoe.
At 13.5 feet, Old River Road threatened west of Roscoe Bridge.
* ADDITIONAL DETAILS...
- At 9:30 PM CDT Friday the stage was 10.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 PM CDT Friday was 10.5 feet.
- Forecast...The river is now expected to crest near 13.5 feet
on Monday based upon the latest rainfall estimates.
- Flood stage is 10.0 feet.
- Flood History...This crest compares to a previous crest of
13.5 feet on 02/26/2018.
- 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 Saturday afternoon.
Area Description:
Winnebago, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov