816  
WWUS72 KCHS 211809  
NPWCHS  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
209 PM EDT FRI AUG 21 2026  
 
GAZ137-216>219-238>241-211915-  
/O.CAN.KCHS.HT.Y.0028.000000T0000Z-260822T0000Z/  
LONG-INLAND BRYAN-COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-  
INLAND LIBERTY-COASTAL LIBERTY-INLAND MCINTOSH-COASTAL MCINTOSH-  
INCLUDING THE CITIES OF PEMBROKE, POOLER, OAK LEVEL, TOWNSEND,  
LUDOWICI, DARIEN, TYBEE ISLAND, GARDEN CITY, WILMINGTON ISLAND,  
SAVANNAH, FORT MCALLISTER, FORT STEWART, RICHMOND HILL, AND  
HINESVILLE  
209 PM EDT FRI AUG 21 2026  
   
..HEAT ADVISORY IS CANCELLED
 
 

 
 
SCZ148>152-220000-  
/O.CON.KCHS.HT.Y.0028.000000T0000Z-260822T0000Z/  
BEAUFORT-COASTAL COLLETON-CHARLESTON-COASTAL JASPER-TIDAL  
BERKELEY-  
INCLUDING THE CITIES OF EDISTO BEACH, JASPER, DANIEL ISLAND, NORTH  
CHARLESTON, MOUNT PLEASANT, LEVY, CHELSEA, BEAUFORT, HILTON HEAD  
ISLAND, AND CHARLESTON  
209 PM EDT FRI AUG 21 2026  
   
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
 
 
* WHAT...HEAT INDEX VALUES UP TO 108.  
 
* WHERE...BEAUFORT, CHARLESTON, COASTAL COLLETON, COASTAL JASPER, AND  
TIDAL BERKELEY COUNTIES.  
 
* WHEN...UNTIL 8 PM EDT THIS EVENING.  
 
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT  
ILLNESSES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF  
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.  
 

 
 

 
 
CPM  
 
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