Illinois Flood Warning | Effective 05/01/2026 19:01
...The Flood Warning continues for the following rivers in
Illinois...
Fox River at Algonquin Lock & Dam tailwater affecting McHenry,
Kane and Lake IL Counties.
* WHAT...Moderate flooding is occurring and moderate 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 early Tuesday morning.
* IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue