021
WWUS72 KJAX 192356
NPWJAX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
756 PM EDT WED AUG 19 2026
FLZ021-023-024-030-031-035-038-120-124-125-132-136>138-140-220-225-
232-233-236-237-240-322-325-333-340-422-425-433-522-533-633-GAZ153-
154-162-163-165-166-264-350-364-202100-
/O.EXP.KJAX.HT.Y.0024.000000T0000Z-260820T0000Z/
/O.CON.KJAX.HT.Y.0025.260820T1500Z-260820T2300Z/
SUWANNEE-BAKER-INLAND NASSAU-UNION-BRADFORD-GILCHRIST-INLAND
FLAGLER-EASTERN HAMILTON-COASTAL NASSAU-COASTAL DUVAL-EASTERN
CLAY-EASTERN ALACHUA-EASTERN PUTNAM-COASTAL FLAGLER-EASTERN
MARION-WESTERN HAMILTON-TROUT RIVER-WESTERN CLAY-NORTHEAST
COASTAL ST. JOHNS-WESTERN ALACHUA-WESTERN PUTNAM-CENTRAL MARION-
NORTHERN COLUMBIA-SOUTH CENTRAL DUVAL-SOUTHEAST COASTAL ST. JOHNS-
WESTERN MARION-SOUTHEASTERN COLUMBIA-WESTERN DUVAL-NORTHERN
INLAND ST. JOHNS-SOUTHWESTERN COLUMBIA-SOUTHERN INLAND ST. JOHNS-
WESTERN ST. JOHNS-INLAND GLYNN-COASTAL GLYNN-ECHOLS-CLINCH-INLAND
CAMDEN-COASTAL CAMDEN-NORTHEASTERN CHARLTON-SOUTHERN WARE-WESTERN
CHARLTON-
INCLUDING THE CITIES OF HOMELAND, RACE POND, OLUSTEE, DUPONT CENTER,
BOSTWICK, WATERTOWN, ANDALUSIA, HOMERVILLE, BUTLER BEACH, BUNNELL,
HOUSTON, KINGSLAND, DURBIN, DUNGENESS, SAINT AUGUSTINE BEACH, DOVER
BLUFF, CARRAWAY, SWITZERLAND, PALM COAST, OLENO STATE PARK, HILLIARD,
COUNTRY CLUB ESTATE, NEWNANS LAKE, PICOLATA, STARKE, THALMANN,
STEPHEN FOSTER STATE PARK, WAVERLY, SUWANNEE VALLEY, LYNNE, SAINT
AUGUSTINE SOUTH, YULEE, SAN MARCO, GAINESVILLE, NEWBERRY, ARCHER,
OCEANWAY, FRUIT COVE, NEWBURN, WEST LAKE, COLESBURG, WINOKUR,
BAKERSVILLE, MACCLENNY, LIVE OAK, TRENTON, KINGS FERRY, DOCK
JUNCTION, WEIRSDALE, COLUMBIA, JEKYLL ISLAND, PALM VALLEY, TARBORO,
ESPANOLA, BELMONT, JACKSONVILLE,
SUWANNEE RIVER STATION, OCALA, AMELIA CITY, WOODBINE, ST. GEORGE,
GLYNN HAVEN, LAKE BUTLER, HIGH SPRINGS, LULU, NORMANDY, BURBANK,
WHITE SPRINGS, FERNANDINA BEACH, SUWANNEE SPRINGS, ARLINGTON, JASPER,
SAINT AUGUSTINE, NEEDMORE, NEW RIVER, ORTEGA, FOLKSTON, MCALPIN,
RIVERSIDE, SEA ISLAND, WINFIELD, GREEN COVE SPRINGS,
STATENVILLE, BRYCEVILLE, ST. SIMONS, TALLYRAND, OCALA AIRPORT,
PALATKA, GAINESVILLE AIRPORT, RATLIFF, MIDDLEBURG, ANASTASIA, ORANGE
PARK, LAKESIDE, BELLAIR, PONTE VEDRA BEACH, JENNINGS, SAINT AUGUSTINE
SHORE, BLUE SPRINGS, LAKE CITY, ANTHONY, MOSS BLUFF, AND DOCTORS
INLET
756 PM EDT WED AUG 19 2026
..HEAT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING
..HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT THURSDAY
* WHAT...HEAT INDEX VALUES UP TO 110 EXPECTED.
* WHERE...PORTIONS OF NORTHEAST AND NORTHERN FLORIDA AND SOUTHEAST
GEORGIA.
* WHEN...FROM 11 AM TO 7 PM EDT THURSDAY.
* 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.
FOR MORE INFORMATION, VISIT US AT WWW.WEATHER.GOV/JAX
AC
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