Skip to content

Favorites

Flood Warning

Status

New Event Active alert

Start Time

Thu 04/30/2026 04:24 AM EDT

End Time

Sun 05/03/2026 09:00 PM EDT

Significance

Warning

Impacts

High impact

Locations Affected

Saint Louis, MO ∙ Madison, IL ∙ Washington Park, IL ∙ Lemay, MO ∙ Stolle, IL ∙ Centreville, IL ∙ Stallings, IL ∙ East Carondelet, IL ∙ Cahokia St Louis Downtown Airport, IL ∙ Fairmont City, IL

Headline

...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois...
Mississippi River at Mel Price LD.
Mississippi River near Herculaneum.
Mississippi River at Alton.
Mississippi River at St. Louis.
River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the dangers of flooding.
This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
&&

Full Alert Message

BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service St Louis MO 1138 AM CDT Tue Apr 28 2026 ...The National Weather Service in St Louis has issued a Flood Warning for the following rivers in Missouri...Illinois... Mississippi River at Mel Price LD. Mississippi River near Herculaneum. Mississippi River at Alton. Mississippi River at St. Louis. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx && ...FLOOD WARNING IN EFFECT FROM LATE WEDNESDAY NIGHT TO SUNDAY EVENING... * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at St. Louis. * WHEN...From late Wednesday night to Sunday evening. * IMPACTS...At 31.9 feet, The entrance to the parking garage just north of Eads bridge begins flooding. * ADDITIONAL DETAILS... - At 11:00 AM CDT Tuesday the stage was 24.7 feet. - Forecast...The river is expected to rise above flood stage early Thursday morning to a crest of 31.2 feet Friday morning. It will then fall below flood stage early Saturday afternoon. - Flood stage is 30.0 feet. && All Times CDT Fld Observed Forecasts (7:00 am) Location Stg Stage Wed Thu Fri Sat Sun Mississippi River St. Louis 30.0 24.7 27.6 30.3 31.2 30.5 28.3 && LAT...LON 3881 9017 3881 9001 3866 9002 3853 9016 3843 9022 3843 9032 3856 9029 3863 9020 3872 9023

Technical Header

ILC163-MOC189-510-300445- /O.NEW.KLSX.FL.W.0058.260430T0824Z-260504T0100Z/ /EADM7.1.ER.260430T0824Z.260501T1200Z.260502T1912Z.NO/ 1138 AM CDT Tue Apr 28 2026