Headline:
Flood Warning issued May 4 at 9:29AM CDT until May 5 at 7:00PM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
May 4, 2026 - 7:29am
Expires:
May 5, 2026 - 1:30am
Description:
...The Flood Warning is extended for the following rivers in
Illinois...
Fox River at Algonquin Lock & Dam tailwater affecting Kane,
McHenry and Lake IL Counties.
For the Fox River (Illinois)...including Algonquin Lock & Dam
tailwater...Minor flooding is forecast.
* WHAT...Minor flooding is occurring and forecasted to occur.
* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
St. Charles, including the Algonquin Lock & Dam tailwater gauge.
* WHEN...Until tomorrow evening.
* IMPACTS...At 10.0 feet, Winaki Trail and Onaway Trail are
threatened south of Algonquin. Athletic fields inundated at Judson
College in Elgin.
* ADDITIONAL DETAILS...
- At 8:30 AM CDT Monday the stage was 9.8 feet.
- Forecast...The river is expected to fall below flood stage
early tomorrow afternoon and continue falling to 7.9 feet
Monday, May 11.
- Flood stage is 9.5 feet.
- Flood History...This crest compares to a previous crest of
9.4 feet on 07/18/2024.
- 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 late tonight.
Area Description:
Kane, IL; Lake, IL; McHenry, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov