Active Weather Alerts
River Flood Warning
Issued: 12:29 AM Mar. 7, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY EVENING... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Meramec River near Sullivan. * WHEN...Until Sunday evening. * IMPACTS...At 15.6 feet, The basic loop of the Onondaga Cave State Park campground begins flooding near this height. * ADDITIONAL DETAILS... - At 5:29 PM CST Friday the stage was 16.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:29 PM CST Friday was 19.7 feet. - Forecast...The river is expected to fall below flood stage tomorrow afternoon and continue falling to 5.6 feet Thursday evening. - Flood stage is 11.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Sun Mon Tue Wed Thu Meramec River Sullivan 11.0 16.3 9.0 7.8 6.8 6.2 5.8 &&
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