Active Weather Alerts
River Flood Warning
Issued: 2:01 PM Apr. 21, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY NIGHT... * WHAT...Minor flooding is forecast. * WHERE...Meramec River near Arnold. * WHEN...Until late Wednesday night. * IMPACTS...At 24.0 feet, Corisande Hills Road begins flooding at this height. Meramec Bottom Road between Hagemann Road and Highway 21 begins flooding. * ADDITIONAL DETAILS... - At 8:30 AM CDT Tuesday the stage was 23.8 feet. - Forecast...The river is expected to rise to a crest of 24.0 feet this afternoon. It will then fall below flood stage this evening. - Flood stage is 24.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Wed Thu Fri Sat Sun Meramec River Arnold 24.0 23.8 23.7 22.9 22.0 21.6 21.5 &&
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