434  
WUUS53 KLSX 101911  
SVRLSX  
MOC183-189-101945-  
/O.NEW.KLSX.SV.W.0195.250810T1911Z-250810T1945Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE ST LOUIS MO  
211 PM CDT SUN AUG 10 2025  
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A  
 
* SEVERE THUNDERSTORM WARNING FOR...  
SOUTHWESTERN SAINT CHARLES COUNTY IN EAST CENTRAL MISSOURI...  
WEST CENTRAL SAINT LOUIS COUNTY IN EAST CENTRAL MISSOURI...  
 
* UNTIL 245 PM CDT.  
 
* AT 211 PM CDT, A SEVERE THUNDERSTORM WAS LOCATED OVER DEFIANCE, OR  
8 MILES SOUTHWEST OF DARDENNE PRAIRIE, MOVING NORTHEAST AT 15 MPH.  
 
HAZARD...60 MPH WIND GUSTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...EXPECT DAMAGE TO ROOFS, SIDING, AND TREES.  
 
* LOCATIONS IMPACTED INCLUDE...  
O'FALLON, CHESTERFIELD, WILDWOOD, LAKE ST. LOUIS, DARDENNE  
PRAIRIE, WELDON SPRING, SPIRIT OF ST. LOUIS AIRPORT, NEW MELLE,  
WELDON SPRING HEIGHTS AND DEFIANCE.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SEEK SHELTER INSIDE A WELL-BUILT STRUCTURE AND STAY AWAY FROM  
WINDOWS. THIS STORM IS CAPABLE OF PRODUCING DAMAGING WINDS.  
 

 
 
LAT...LON 3861 9084 3870 9090 3881 9075 3865 9062  
3863 9073 3864 9073 3864 9074 3863 9075  
TIME...MOT...LOC 1911Z 239DEG 14KT 3866 9082  
 
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...0.00 IN  
WIND THREAT...RADAR INDICATED  
MAX WIND GUST...60 MPH  
 

 
 
PFAHLER  
 
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