Active Weather Alerts
Severe Thunderstorm Watch
Issued: 4:28 AM Mar. 7, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 21 IN EFFECT UNTIL 6 AM CST SATURDAY FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN SOUTHWEST ILLINOIS CALHOUN JERSEY MADISON MONROE RANDOLPH SAINT CLAIR IN MISSOURI THIS WATCH INCLUDES 18 COUNTIES IN CENTRAL MISSOURI AUDRAIN BOONE CALLAWAY OSAGE IN EAST CENTRAL MISSOURI CRAWFORD FRANKLIN GASCONADE JEFFERSON LINCOLN MONTGOMERY SAINT CHARLES SAINT LOUIS SAINT LOUIS CITY WARREN WASHINGTON IN NORTHEAST MISSOURI PIKE IN SOUTHEAST MISSOURI SAINT FRANCOIS SAINTE GENEVIEVE THIS INCLUDES THE CITIES OF ALTON, BELLEVILLE, BOWLING GREEN, CAHOKIA, CHESTER, COLUMBIA, EDWARDSVILLE, FARMINGTON, FULTON, MEXICO, SAINT CHARLES, SAINT LOUIS, SPARTA, SULLIVAN, UNION, AND WASHINGTON.
River Flood Warning
Issued: 12:27 AM Mar. 7, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM SATURDAY MORNING TO LATE MONDAY NIGHT... * WHAT...Minor flooding is forecast. * WHERE...Meramec River near Eureka. * WHEN...From Saturday morning to late Monday night. * IMPACTS...At 22.0 feet, Willman Road near the Highway 109 bridge becomes inundated and impassable. * ADDITIONAL DETAILS... - At 6:00 PM CST Friday the stage was 15.0 feet. - Forecast...The river is expected to rise above flood stage late tomorrow morning to a crest of 22.5 feet Sunday morning. It will then fall below flood stage late Sunday evening. - Flood stage is 19.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Sun Mon Tue Wed Thu Meramec River Eureka 19.0 15.0 22.5 15.2 9.5 8.1 7.1 &&
River Flood Warning
Issued: 12:27 AM Mar. 7, 2026 – National Weather Service
...FLOOD WARNING IN EFFECT FROM SATURDAY EVENING TO TUESDAY MORNING... * WHAT...Minor flooding is forecast. * WHERE...Meramec River at Valley Park. * WHEN...From Saturday evening to Tuesday morning. * IMPACTS...At 19.5 feet, Buder Park and the recreation park at the water plant floods. * ADDITIONAL DETAILS... - At 6:00 PM CST Friday the stage was 10.6 feet. - Forecast...The river is expected to rise above flood stage late tomorrow evening to a crest of 19.7 feet early Sunday afternoon. It will then fall below flood stage early Monday morning. - Flood stage is 18.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Sun Mon Tue Wed Thu Meramec River Valley Park 18.0 10.6 19.5 15.9 7.7 5.5 3.8 &&
River Flood Warning
Issued: 12:22 AM Mar. 7, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL MONDAY AFTERNOON... * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Big River at Byrnesville. * WHEN...Until Monday afternoon. * IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road must be closed. * ADDITIONAL DETAILS... - At 5:45 PM CST Friday the stage was 20.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:45 PM CST Friday was 20.5 feet. - Forecast...The river is expected to rise to a crest of 22.5 feet early tomorrow afternoon. It will then fall below flood stage Sunday afternoon. - Flood stage is 16.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Sun Mon Tue Wed Thu Big River Byrnesville 16.0 20.5 19.3 11.6 8.4 7.1 6.5 &&
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