227  
NWUS51 KPBZ 201525  
LSRPBZ  
 
PRELIMINARY LOCAL STORM REPORT  
NATIONAL WEATHER SERVICE PITTSBURGH PA  
1125 AM EDT THU AUG 20 2026  
   
.TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON
 
   
.DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.
 
 
..REMARKS..  
 
1103 AM FLASH FLOOD 1 NNE THOMPSONVILLE 40.30N 80.11W  
08/20/2026 WASHINGTON PA 911 CALL CENTER  
 
FLOODING FROM CHARTIERS CREEK ALONG  
GEORGETOWN ROAD AND CREEKSIDE DRIVE.  
 

 
 

 
 
AAM  
 
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