444
WWUS72 KCHS 201154
NPWCHS
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
754 AM EDT THU AUG 20 2026
GAZ217>219-239>241-SCZ045-148>152-202000-
/O.CON.KCHS.HT.Y.0027.260820T1500Z-260821T0000Z/
COASTAL BRYAN-INLAND CHATHAM-COASTAL CHATHAM-COASTAL LIBERTY-
INLAND MCINTOSH-COASTAL MCINTOSH-INLAND BERKELEY-BEAUFORT-COASTAL
COLLETON-CHARLESTON-COASTAL JASPER-TIDAL BERKELEY-
INCLUDING THE CITIES OF DANIEL ISLAND, MONCKS CORNER, SAVANNAH, NORTH
CHARLESTON, MOUNT PLEASANT, EDISTO BEACH, WILMINGTON ISLAND, GARDEN
CITY, GOOSE CREEK, HILTON HEAD ISLAND, BEAUFORT, JASPER, CHARLESTON,
FORT MCALLISTER, TOWNSEND, TYBEE ISLAND, LEVY, OAK LEVEL, POOLER,
DARIEN, AND CHELSEA
754 AM EDT THU AUG 20 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
EDT THIS EVENING...
* WHAT...HEAT INDEX VALUES UP TO 110 EXPECTED.
* WHERE...PORTIONS OF SOUTHEAST GEORGIA AND SOUTHEAST SOUTH CAROLINA.
* WHEN...FROM 11 AM THIS MORNING TO 8 PM EDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
TO REDUCE RISK DURING OUTDOOR WORK, THE OCCUPATIONAL SAFETY AND
HEALTH ADMINISTRATION RECOMMENDS SCHEDULING FREQUENT REST BREAKS IN
SHADED OR AIR CONDITIONED ENVIRONMENTS. ANYONE OVERCOME BY HEAT
SHOULD BE MOVED TO A COOL AND SHADED LOCATION. HEAT STROKE IS AN
EMERGENCY! CALL 9 1 1.
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