Flood Warning

Locations Affected

Aurora, IL ∙ Montgomery, IL ∙ Millbrook, IL ∙ Oswego, IL ∙ Mooseheart, IL ∙ Montgomery, IL ∙ Geneva, IL ∙ Boulder Hill, IL ∙ Bristol, IL ∙ Batavia, IL

Headline

...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois...
Fox River at Montgomery affecting Kane and Kendall Counties.
...Forecast flooding changed from Minor to Moderate severity for the following rivers in Illinois...
Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties.
For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery, Dayton...Moderate 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 late tonight.
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Full Alert Message

BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Chicago IL 1043 AM CDT Wed Apr 15 2026 ...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. ...Forecast flooding changed from Minor to Moderate severity for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery, Dayton...Moderate 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 late tonight. && ...FLOOD WARNING IN EFFECT FROM LATE TONIGHT TO SATURDAY MORNING... * WHAT...Minor flooding is forecast. * WHERE...Fox River from Red Gate Road in St. Charles downstream to Millington, including the Montgomery gauge. * WHEN...From late tonight to Saturday morning. * IMPACTS...At 13.5 feet, Low-lying parking lots at city hall and Boy Scout Island are threatened in St. Charles. Fox River Trail is threatened at St. Mary Park in St. Charles. * ADDITIONAL DETAILS... - At 10:00 AM CDT Wednesday the stage was 13.3 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest near flood stage tomorrow evening. It will then fall below flood stage early Saturday morning. - Flood stage is 13.5 feet. - http://www.weather.gov/safety/flood && LAT...LON 4195 8838 4194 8827 4169 8826 4154 8860 4163 8860 4173 8838

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