Illinois Flood Warning | Effective 04/23/2026 19:15
...The Flood Warning continues for the following rivers in
Illinois...
Fox River at Montgomery affecting Kendall and Kane Counties.
Fox River at Algonquin Lock & Dam tailwater affecting McHenry,
Kane and Lake IL Counties.
* WHAT...Major flooding is occurring and is forecasted to continue.
* 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 12.0 feet, structures threatened along River Street,