Headline:
Flood Warning issued June 12 at 10:39AM CDT until June 14 at 1:00AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Expected
Effective:
June 12, 2026 - 8:39am
Expires:
June 13, 2026 - 2:45am
Description:
...The National Weather Service in Chicago IL has issued a Flood
Warning for the following rivers in Illinois...
Illinois River at Ottawa affecting La Salle County.
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...From this morning to early Sunday morning.
* IMPACTS...At 462.5 feet, Roadway entrance to Allen Park threatened
in Ottawa. Allen Park west boat ramp inundated in Ottawa.
At 464.0 feet, Backwater causes the Fox River to reach bankfull
near St. Elizabeth Medical Center in Ottawa.
* ADDITIONAL DETAILS...
- At 9:30 AM CDT Friday the stage was 462.4 feet.
- Recent Activity...The river has climbed to near flood stage
overnight.
- Forecast...The river is expected to crest near flood stage
tomorrow morning.
- 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