Flood Warning

Locations Affected

Elgin, IL ∙ South Elgin, IL ∙ Cary, IL ∙ Williams Park, IL ∙ Carpentersville, IL ∙ Lilymoor, IL ∙ Sleepy Hollow, IL ∙ Oakwood Hills, IL ∙ Island Lake, IL ∙ McHenry, IL

Headline

...The Flood Warning continues for the following rivers in Illinois...
Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Lake IL and Kane Counties.
For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property.
These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts.
Additional information is available at www.weather.gov.
The next statement will be issued by Saturday afternoon.
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Full Alert Message

Flood Statement National Weather Service Chicago IL 904 PM CDT Fri Apr 10 2026 ...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Lake IL and Kane Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is forecast. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Saturday afternoon. && ...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 10.0 feet, Winaki Trail and Onaway Trail are threatened south of Algonquin. Athletic fields inundated at Judson College in Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 9.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 10.0 feet. - Forecast...The river is expected to gradually fall below flood stage early next week. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood && LAT...LON 4238 8829 4234 8818 4223 8813 4194 8827 4195 8838 4219 8830

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