Flood Warning Illinois | Effective 04/04/2026 19:40

Headline: 
Flood Warning issued April 4 at 9:40PM CDT until April 10 at 7:00PM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Immediate
Effective: 
April 4, 2026 - 7:40pm
Expires: 
April 5, 2026 - 1:45pm
Description: 
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Ottawa affecting La Salle County. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Salle affecting Bureau, La Salle and Putnam Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until Friday evening. * 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 8:45 PM CDT Saturday the stage was 22.3 feet. - Forecast...The river is expected to rise to a crest of 23.9 feet Sunday evening. It will then fall below flood stage early Friday afternoon. - 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 afternoon.
Area Description: 
Bureau, IL; La Salle, IL; Putnam, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov