Weather Alerts For Byrnes Mill, MO

BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service St Louis MO 1005 AM CDT Mon Mar 9 2026 ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Missouri... Big River at Byrnesville. River forecasts are based on observed precipitation and forecast precipitation for the next 48 hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx && 1005 AM CDT Mon Mar 9 2026 ...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING... * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Big River at Byrnesville. * WHEN...Until Wednesday morning. * IMPACTS...At 20.5 feet, Burgan Grove Road begins flooding near Cottage Grove Road, cutting off access to Cottage Grove Road. Highway W near Hoene Spring is closed as water crosses the pavement. * ADDITIONAL DETAILS... - At 9:45 AM CDT Monday the stage was 20.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Monday was 20.1 feet. - Forecast...The river is expected to rise to a crest of 20.1 feet this afternoon. It will then fall below flood stage tomorrow morning. - Flood stage is 16.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Tue Wed Thu Fri Sat Big River Byrnesville 16.0 20.1 16.1 8.7 7.7 7.3 6.9 &&

Pollen Index: 9.6 Pollen Level: medium-high Predominant Pollen: Maple, Cedar/Juniper and Alder The amount of pollen in the air for Monday will be increasing in the high range. Since the weather has a major influence on pollen dispersal, this increase is due in part to higher temperatures and windy conditions.