Headline:
Flood Warning issued April 18 at 12:53PM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Immediate
Effective:
April 18, 2026 - 10:53am
Expires:
April 19, 2026 - 5:00am
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, Putnam and Bureau
Counties.
For the Illinois River (Upper)...including Morris, Ottawa, La
Salle...Minor flooding is forecast.
* WHAT...Minor flooding is occurring and forecasted to continue.
* WHERE...Illinois River from Starved Rock Lock and Dam downstream
to confluence with Big Bureau Creek, including the La Salle gauge.
* WHEN...Until further notice.
* IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State
Park is inundated east of La Salle. High water levels begin to
impact shipping interests along the river.
* ADDITIONAL DETAILS...
- At 11:45 AM CDT Saturday the stage was 21.0 feet.
- Forecast...The river is expected to rise to a crest of 23.0
feet Monday morning.
- Flood stage is 20.0 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 Sunday morning.
Area Description:
Bureau, IL; La Salle, IL; Putnam, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov