Immediate

Responsive action SHOULD be taken immediately

Illinois Flood Warning | Effective 04/18/2026 18:28

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Illinois... La Moine River at Colmar affecting McDonough and Hancock Counties. * WHAT...Minor flooding is forecast. * WHERE...La Moine River at Colmar. * WHEN...Until Monday evening. * IMPACTS...At 20.0 feet, Water affects the lowest portions of<br /> Lambert Road and affects Lamar Road approximately 100 feet north<br /> of the intersection with County Road 26. * ADDITIONAL DETAILS...<br />

Iowa Flood Warning | Effective 04/18/2026 18:29

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in Iowa... Wapsipinicon River near De Witt 4S affecting Clinton and Scott<br /> Counties. * WHAT...Moderate flooding is occurring and moderate flooding is<br /> forecast. This approaches the flood of record. * WHERE...Wapsipinicon River near De Witt 4S. * WHEN...Until Saturday, April 25. * IMPACTS...At 12.5 feet, Major Flood Stage. Water affects old U.S.<br /> Highway 61 near the river. * ADDITIONAL DETAILS...<br />

Illinois Flood Warning | Effective 04/18/2026 18:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning is extended for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. ...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and forecasted to continue.

Illinois Flood Warning | Effective 04/18/2026 18:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning is extended for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. ...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and forecasted to continue.

Illinois Flood Warning | Effective 04/18/2026 18:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning is extended for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. ...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Minor flooding is occurring and moderate flooding is<br />

Illinois Flood Warning | Effective 04/18/2026 18:35

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning is extended for the following rivers in<br /> Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL<br /> Counties. ...The Flood Warning continues for the following rivers in<br /> Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and Major flooding is<br />

Illinois Flood Warning | Effective 04/18/2026 18:40

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Illinois... Fox River at Dayton affecting La Salle County. Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock &amp; Dam tailwater affecting Kane,<br /> McHenry and Lake IL Counties. * WHAT...Moderate flooding is occurring and forecasted to continue. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in<br />

Illinois Flood Warning | Effective 04/18/2026 18:40

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Illinois... Fox River at Dayton affecting La Salle County. Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock &amp; Dam tailwater affecting Kane,<br /> McHenry and Lake IL Counties. * WHAT...Minor flooding is forecasted. * WHERE...Fox River from Millington downstream to confluence with<br /> the Illinois River, including the Dayton gauge. * WHEN...Until Monday morning.

Illinois Flood Warning | Effective 04/18/2026 18:40

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Illinois... Fox River at Dayton affecting La Salle County. Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock &amp; Dam tailwater affecting Kane,<br /> McHenry and Lake IL Counties. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Fox River from Red Gate Road in St. Charles downstream to<br /> Millington, including the Montgomery gauge.

Illinois Flood Warning | Effective 04/18/2026 18:43

Public safety alert, emergency alert, and weather alert<br /> Description:<br /> ...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at La Salle affecting La Salle, Putnam and Bureau<br /> Counties. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Illinois River from Starved Rock Lock and Dam downstream<br /> to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until further notice. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State<br />
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