Active Weather Alerts
River Flood Warning
Issued: 4:48 PM Jun. 17, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * 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 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 10:45 AM CDT Wednesday the stage was 21.1 feet. - Forecast...The river is now expected to crest near 24 to 25 feet on Friday. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 3:58 PM Jun. 17, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM LATE THURSDAY NIGHT UNTIL FURTHER NOTICE... * WHAT...Moderate flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...From late Thursday night until further notice. * IMPACTS...At 23.0 feet, Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river. * ADDITIONAL DETAILS... - At 10:45 AM CDT Wednesday the stage was 22.6 feet. - Forecast...The river is expected to rise above flood stage early Friday morning and continue rising to a crest of 24.8 feet early Sunday afternoon. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood && Fld Observed Forecasts (1 pm CDT) Location Stg Stg Day/Time Thu Fri Sat Illinois River Henry 23.0 22.6 Wed 10 am CDT 22.7 23.3 24.3 &&
Flood Watch
Issued: 3:07 PM Jun. 17, 2026 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT UNTIL 7 PM CDT THIS EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of north central and northwest Illinois, including the following areas, in north central Illinois, Bureau and Putnam. In northwest Illinois, Henry IL and Whiteside. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Thunderstorms producing heavy rainfall, with some seeing repeating rounds of storms though the day. There will be the potential to see around 3 inches or more of rainfall. PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
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