Illinois Flood Warning | Effective 04/18/2026 17:57
Public safety alert, emergency alert, and weather alert
Description:
...Forecast flooding changed from Minor to Moderate severity and
increased in duration for the following rivers in Illinois...
Kishwaukee River at Belvidere affecting Boone and Winnebago
Counties.
* WHAT...Minor flooding is occurring and moderate flooding is
forecasted to occur.
* WHERE...Kishwaukee River from County Line Road downstream to
confluence with South Branch Kishwaukee River, including the
Belvidere gauge.