Illinois Flood Warning | Effective 04/18/2026 17:59
Public safety alert, emergency alert, and weather alert<br />
Description:<br />
...Forecast flooding changed from Minor to Moderate severity and<br />
increased in duration for the following rivers in Illinois...
Pecatonica River near Shirland affecting Winnebago County.
* WHAT...Minor flooding is occurring and moderate flooding is<br />
forecasted to occur.
* WHERE...Pecatonica River from Winnebago County line downstream to<br />
confluence with the Rock River, including the Shirland gauge.
* WHEN...Until further notice.