Active Weather Alerts
River Flood Warning
Issued: 4:56 AM Apr. 4, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM LATE SUNDAY NIGHT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...From late Sunday 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 11:45 PM CDT Friday the stage was 18.4 feet. - Forecast...The river is expected to rise above flood stage early Monday morning and continue rising to a crest of 23.8 feet Tuesday evening. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood && Fld Observed Forecasts (1 am CDT) Location Stg Stg Day/Time Sun Mon Tue Illinois River Henry 23.0 18.4 Fri 11 pm CD 21.0 22.8 23.6 &&
River Flood Warning
Issued: 3:09 AM 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. * ADDITIONAL DETAILS... - At 9:45 PM CDT Friday the stage was 20.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 PM CDT Friday was 20.3 feet. - Forecast...The river is expected to rise to a crest of 25.0 feet Sunday evening. It will then fall below flood stage Friday, April 10. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood &&
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