Headline:
Flood Warning issued April 4 at 11:38AM CDT until April 7 at 1:00AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 4, 2026 - 9:38am
Expires:
April 5, 2026 - 3:45am
Description:
...The Flood Warning continues for the following rivers in
Illinois...
Illinois River at Ottawa affecting La Salle County.
Illinois River at La Salle affecting La Salle, Bureau and Putnam
Counties.
For the Illinois River (Upper)...including Ottawa, La Salle...Minor
flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Illinois River from Heritage Harbor east of Ottawa
downstream to Starved Rock Lock and Dam, including the Ottawa
gauge.
* WHEN...Until early Tuesday morning.
* IMPACTS...At 464.0 feet, Backwater causes the Fox River to reach
bankfull near St. Elizabeth Medical Center in Ottawa.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Saturday the stage was 463.0 feet.
- Forecast...The river is expected to rise to a crest of 464.5
feet early tomorrow afternoon. It will then fall below flood
stage Monday evening.
- Flood stage is 463.0 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:
La Salle, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov