Headline:
Flood Warning issued April 18 at 9:52AM CDT until April 19 at 7:00AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Expected
Effective:
April 18, 2026 - 7:52am
Expires:
April 19, 2026 - 2:00am
Description:
...Forecast flooding changed to Minor severity and increased in
duration for the following rivers in Illinois...
Kishwaukee River at Belvidere affecting Winnebago and Boone
Counties.
For the Kishwaukee River...including Belvidere, Perryville...Minor
flooding is forecast.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Kishwaukee River from County Line Road downstream to
confluence with South Branch Kishwaukee River, including the
Belvidere gauge.
* WHEN...Until tomorrow morning.
* IMPACTS...At 9.0 feet, Boone-McHenry County Line Road threatened.
Low-lying areas are threatened in Belvidere Park.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Saturday the stage was 8.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 AM CDT Saturday was 9.3 feet.
- Forecast...The river is expected to rise to a crest of 9.0
feet this afternoon. It will then fall below flood stage this
evening.
- 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:
Boone, IL; Winnebago, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov