Active Weather Alerts
River Flood Warning
Issued: 11:40 PM Jun. 20, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING... * 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 Thursday morning. * 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 5:45 PM CDT Saturday the stage was 21.3 feet. - Forecast...The river crested near 22 feet last night, though is expected to remain above flood stage for several more days while only gradually falling. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 3:35 PM Jun. 20, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY MORNING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...Until Monday morning. * 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 9:45 AM CDT Saturday the stage was 23.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Saturday was 23.1 feet. - Forecast...The river is expected to crest at 23.1 feet this afternoon. It will then fall below flood stage early Monday morning. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood && Fld Observed Forecasts (1 pm CDT) Location Stg Stg Day/Time Sun Mon Tue Illinois River Henry 23.0 23.1 Sat 9 am CDT 23.0 22.8 22.4 &&
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