170
WGUS53 KLSX 122043
FFWLSX
ILC119-163-MOC183-189-510-122330-
/O.NEW.KLSX.FF.W.0048.250812T2043Z-250812T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
343 PM CDT TUE AUG 12 2025
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHWESTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS...
NORTHWESTERN SAINT CLAIR COUNTY IN SOUTHWESTERN ILLINOIS...
EAST CENTRAL SAINT CHARLES COUNTY IN EAST CENTRAL MISSOURI...
EASTERN SAINT LOUIS COUNTY IN EAST CENTRAL MISSOURI...
EASTERN SAINT LOUIS CITY IN EAST CENTRAL MISSOURI...
* UNTIL 630 PM CDT.
* AT 343 PM CDT, DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. BETWEEN 2 AND 3 INCHES OF RAIN
HAVE FALLEN IN A SHORT PERIOD OF TIME. ADDITIONAL RAINFALL AMOUNTS
UP TO 1 INCH ARE POSSIBLE IN THE WARNED AREA. FLASH FLOODING IS
ONGOING OR EXPECTED TO BEGIN SHORTLY.
HAZARD...FLASH FLOODING CAUSED BY THUNDERSTORMS.
SOURCE...RADAR INDICATED.
IMPACT...FLASH FLOODING OF SMALL CREEKS AND STREAMS, URBAN
AREAS, HIGHWAYS, STREETS AND UNDERPASSES AS WELL AS
OTHER POOR DRAINAGE AND LOW-LYING AREAS.
* SOME LOCATIONS THAT WILL EXPERIENCE FLASH FLOODING INCLUDE...
ST. LOUIS, GRANITE CITY, ALTON, EAST ST. LOUIS, EDWARDSVILLE,
CAHOKIA, GLEN CARBON, BELLEFONTAINE NEIGHBORS, WOOD RIVER,
BETHALTO, PONTOON BEACH, CENTREVILLE, WASHINGTON PARK, MADISON,
RIVERVIEW, VENICE, SPANISH LAKE, CAHOKIA PARKS AIRPORT, EAST ALTON
AND FAIRMONT CITY.
THIS INCLUDES THE FOLLOWING STATE PARKS...
SCOTT JOPLIN HISTORIC SITE, CONFLUENCE STATE PARK AND HORSESHOE LAKE
STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
LAT...LON 3859 9028 3893 9014 3889 8991 3855 9015
3857 9023
FLASH FLOOD...RADAR INDICATED
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