Weather Warnings for Illinois

Issued by the National Weather Service

Current watches, warnings, and advisories for Illinois
Alerts Updated: March 19, 2026, 1:41 am  UTC


Flood Warning issued March 18 at 9:41PM EDT until March 20 at 2:00AM EDT by NWS Indianapolis IN

Summary: ...The Flood Warning continues for the following rivers in Indiana... Illinois... White River at Hazleton and Petersburg. Wabash River at Mount Carmel. .Flooding remains at Mount Carmel on the tail end of the Wabash River in southwest Indiana as of Wednesday evening. Flooding is expected to come to an end Thursday afternoon. Flooding remains on the White River at Petersburg and Hazleton, located on the tail end of the river in southwest Indiana. Flooding is predicted to end by late this coming weekend. Little if any precipitation is in the forecast through the end of the week and thus main stem rivers are expected to continue falling through the period. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at Mount Carmel. * WHEN...Until early Friday morning. * IMPACTS...At 20.0 feet, River is bankfull in all locations. All oil field production ceases with the exception of pumping units on substructures. Access to these are by boat only. Agricultural losses increase dramatically. Farmers move livestock to higher ground. City of Mount Carmel leaves flood gates B and C in year round. * ADDITIONAL DETAILS... - At 8:45 PM EDT Wednesday /7:45 PM CDT Wednesday/ the stage was 20.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM EDT Wednesday /7:45 PM CDT Wednesday/ was 21.5 feet. - Forecast...The river is expected to fall below flood stage early tomorrow afternoon and continue falling and remain below flood stage. - Flood stage is 19.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  March 18, 2026, 9:41 pm      Expires:  March 19, 2026, 3:00 pm
Area:  Edwards, IL; Gallatin, IL; Wabash, IL; White, IL; Gibson, IN; Knox, IN; Posey, IN


Flood Warning issued March 18 at 7:50PM CDT by NWS St Louis MO

Summary: ...The Flood Warning continues for the following rivers in Illinois... Kaskaskia River at Carlyle. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. * WHAT...Minor flooding is occurring and forecast. * WHERE...Kaskaskia River at Carlyle. * WHEN...Until further notice. * IMPACTS...At 20.3 feet, Township roads downstream in Covington begin flooding near this height. * ADDITIONAL DETAILS... - At 7:30 PM CDT Wednesday the stage was 20.4 feet. - Forecast...The river is expected to hold steady for the next few days before beginning a slow fall this weekend. - Flood stage is 16.5 feet.
Severity:  Severe    Effective:  March 18, 2026, 7:50 pm      Expires:  March 20, 2026, 8:00 am
Area:  Clinton, IL


Flood Warning issued March 18 at 10:46AM CDT until March 19 at 1:00PM CDT by NWS Paducah KY

Summary: ...The Flood Warning continues for the following rivers in Illinois... Little Wabash River at Carmi. .The Little Wabash River will continue a slow fall, with the level at Carmi falling below flood stage tomorrow morning. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Little Wabash River at Carmi. * WHEN...Until early tomorrow afternoon. * ADDITIONAL DETAILS... - At 9:30 AM CDT Wednesday the stage was 27.7 feet. - Forecast...The river is expected to fall below flood stage tomorrow morning and continue falling to 20.1 feet Wednesday, March 25. - Flood stage is 27.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  March 18, 2026, 10:46 am      Expires:  March 19, 2026, 1:00 pm
Area:  Gallatin, IL; Wayne, IL; White, IL


Flood Warning issued March 18 at 10:42AM CDT until March 20 at 5:30PM CDT by NWS Paducah KY

Summary: ...The Flood Warning continues for the following rivers in Illinois...Indiana... Wabash River at New Harmony. .The Wabash River will continue to fall this week, with the level at New Harmony dropping below flood stage Friday. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Wabash River at New Harmony. * WHEN...Until Friday afternoon. * ADDITIONAL DETAILS... - At 9:30 AM CDT Wednesday the stage was 16.8 feet. - Forecast...The river is expected to fall below flood stage late Friday morning and continue falling to 4.3 feet Saturday, March 28. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood
Severity:  Severe    Effective:  March 18, 2026, 10:42 am      Expires:  March 19, 2026, 12:45 pm
Area:  Gallatin, IL; Wabash, IL; White, IL; Gibson, IN; Posey, IN