Active Weather Alerts
River Flood Warning
Issued: 2:18 AM Apr. 5, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT FROM TUESDAY AFTERNOON TO SATURDAY, APRIL 11... * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...From Tuesday afternoon to Saturday, April 11. * 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 8:45 PM CDT Saturday the stage was 19.6 feet. - Forecast...The river is expected to rise above flood stage Tuesday afternoon to a crest of 23.3 feet early Wednesday morning. It will then fall below flood stage Friday evening. - Flood stage is 23.0 feet. && Fld Observed Forecasts (7 pm CDT) Location Stg Stg Day/Time Sun Mon Tue Illinois River Henry 23.0 19.6 Sat 8 pm CDT 21.2 22.4 23.1 &&
River Flood Warning
Issued: 4:38 PM Apr. 4, 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 Saturday the stage was 21.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Saturday was 21.2 feet. - Forecast...The river is expected to rise to a crest of 23.4 feet early Monday morning. It will then fall below flood stage near the end of next week. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood &&
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