Active Weather Alerts
River Flood Warning
Issued: 2:41 AM Apr. 5, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY AFTERNOON... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Heritage Harbor east of Ottawa downstream to Starved Rock Lock and Dam, including the Ottawa gauge. * WHEN...Until Tuesday afternoon. * IMPACTS...At 465.0 feet, Harbor Walk in Heritage Harbor east of Ottawa is inundated. * ADDITIONAL DETAILS... - At 8:30 PM CDT Saturday the stage was 463.9 feet. - Forecast...The river is expected to rise to a crest of 464.8 feet early Sunday afternoon. It will then fall below flood stage late Tuesday morning. - Flood stage is 463.0 feet. - http://www.weather.gov/safety/flood &&
River Flood Warning
Issued: 2:41 AM Apr. 5, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY EVENING... * 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 &&
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