Headline:
Flood Warning issued April 21 at 11:57AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 21, 2026 - 9:57am
Expires:
April 22, 2026 - 4:00am
Description:
...The Flood Warning continues for the following rivers in
Illinois...
Rock River at Byron affecting Ogle County.
Pecatonica River near Shirland affecting Winnebago County.
Rock River at Rockton affecting Winnebago County.
Rock River at Latham Park affecting Winnebago County.
For the Rock River...including Latham Park, Byron, Rockton...
Moderate flooding is forecast.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Pecatonica River from Winnebago County line downstream to
confluence with the Rock River, including the Shirland gauge.
* WHEN...Until further notice.
* IMPACTS...At 14.0 feet, Structures threatened at Rivers Edge
Campground east of Shirland.
* ADDITIONAL DETAILS...
- At 11:00 AM CDT Tuesday the stage was 13.9 feet.
- Recent Activity...The river stage crested yesterday and has
begun a slow fall.
- Forecast...The river is expected to gradually fall over the
next several days.
- Flood stage is 12.0 feet.
- http://www.weather.gov/safety/flood
Instruction:
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.
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.
Additional information is available at www.weather.gov.
The next statement will be issued by Wednesday morning.
Area Description:
Winnebago, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov