Immediate

Responsive action SHOULD be taken immediately

Illinois, Missouri Flood Warning | Effective 05/01/2026 19:40

...The Flood Warning continues for the following rivers in<br /> Missouri...Illinois... Mississippi River at Alton. Mississippi River near Herculaneum. Mississippi River at Chester. ...The Flood Warning is extended for the following rivers in<br /> Missouri...Illinois... Mississippi River at Mel Price LD. Mississippi River at Grafton. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring. * WHERE...Mississippi River at Alton. * WHEN...Until late Saturday night.

Illinois, Missouri Flood Warning | Effective 05/01/2026 19:40

...The Flood Warning continues for the following rivers in<br /> Missouri...Illinois... Mississippi River at Alton. Mississippi River near Herculaneum. Mississippi River at Chester. ...The Flood Warning is extended for the following rivers in<br /> Missouri...Illinois... Mississippi River at Mel Price LD. Mississippi River at Grafton. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Chester.

Illinois, Missouri Flood Warning | Effective 05/01/2026 19:40

...The Flood Warning continues for the following rivers in<br /> Missouri...Illinois... Mississippi River at Alton. Mississippi River near Herculaneum. Mississippi River at Chester. ...The Flood Warning is extended for the following rivers in<br /> Missouri...Illinois... Mississippi River at Mel Price LD. Mississippi River at Grafton. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Grafton.

Illinois Flood Warning | Effective 05/01/2026 19:01

...The Flood Warning continues for the following rivers in<br /> Illinois... Fox River at Algonquin Lock &amp; Dam tailwater affecting McHenry,<br /> Kane and Lake IL Counties. * WHAT...Moderate flooding is occurring and moderate flooding is<br /> forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in<br /> St. Charles, including the Algonquin Lock &amp; Dam tailwater gauge. * WHEN...Until early Tuesday morning. * IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue<br />

Missouri Flood Warning | Effective 05/01/2026 19:11

...The Flood Warning is extended for the following rivers in<br /> Missouri... Meramec River near Arnold. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Meramec River near Arnold. * WHEN...Until late Monday night. * IMPACTS...At 27.0 feet, Meramec Bottom Road between Wells Road and<br /> Kerth Road begins flooding near this height. * ADDITIONAL DETAILS...<br />

Mississippi Flood Warning | Effective 05/01/2026 19:14

...The Flood Warning continues for the following rivers in<br /> Mississippi... Buttahatchie River near Aberdeen For the Buttahatchie River...including Aberdeen...Minor flooding is<br /> forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Buttahatchie River near Aberdeen. * WHEN...Until Sunday afternoon. * IMPACTS...At 15.0 feet, Water is covering a portion of Air Base<br /> Road located on the west bank of the river. Low-lying farmland is<br /> flooded. * ADDITIONAL DETAILS...<br />

Illinois Flood Warning | Effective 05/01/2026 19:18

...The Flood Warning is extended for the following rivers in<br /> Illinois... Illinois River at Meredosia. ...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Hardin. * WHEN...Until further notice. * ADDITIONAL DETAILS...<br />

Illinois Flood Warning | Effective 05/01/2026 19:18

...The Flood Warning is extended for the following rivers in<br /> Illinois... Illinois River at Meredosia. ...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Valley City. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, The road to Norbut Fish and Wildlife area<br />

Illinois Flood Warning | Effective 05/01/2026 19:18

...The Flood Warning is extended for the following rivers in<br /> Illinois... Illinois River at Meredosia. ...The Flood Warning continues for the following rivers in<br /> Illinois... Illinois River at Valley City. Illinois River at Hardin. River forecasts are based on observed precipitation and forecast<br /> precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Meredosia. * WHEN...From late tonight to Monday evening. * IMPACTS...At 17.4 feet, Meredosia boat dock floods. * ADDITIONAL DETAILS...<br />

Illinois Flood Warning | Effective 05/01/2026 19:19

...The Flood Warning is extended for the following rivers in<br /> Illinois... Embarras River at Lawrenceville affecting Lawrence County. .The following forecasts are based on observed precipitation, soil<br /> moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Embarras River at Lawrenceville. * WHEN...Until early Monday afternoon. * IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated. * ADDITIONAL DETAILS...<br /> - At 8:45 PM CDT Friday the stage was 31.9 feet.<br />
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