710
WWUS72 KJAX 290327
NPWJAX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1127 PM EDT TUE JUL 28 2026
FLZ021-023-024-030-031-035-120-124-125-132-136-137-220-225-232-233-
236-237-322-325-333-422-425-433-522-533-633-GAZ153-154-162-163-165-
166-264-350-364-300000-
/O.UPG.KJAX.XH.A.0001.260729T1500Z-260730T0000Z/
/O.NEW.KJAX.XH.W.0001.260729T1500Z-260730T0000Z/
SUWANNEE-BAKER-INLAND NASSAU-UNION-BRADFORD-GILCHRIST-EASTERN
HAMILTON-COASTAL NASSAU-COASTAL DUVAL-EASTERN CLAY-EASTERN
ALACHUA-EASTERN PUTNAM-WESTERN HAMILTON-TROUT RIVER-WESTERN CLAY-
NORTHEAST COASTAL ST. JOHNS-WESTERN ALACHUA-WESTERN PUTNAM-
NORTHERN COLUMBIA-SOUTH CENTRAL DUVAL-SOUTHEAST COASTAL ST. JOHNS-
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 OCEANWAY, STEPHEN FOSTER STATE PARK, SAN
MARCO, DOCK JUNCTION, NEWNANS LAKE, SAINT AUGUSTINE SOUTH, FERNANDINA
BEACH, DUPONT CENTER, HOUSTON, BOSTWICK, JENNINGS, KINGS FERRY,
THALMANN, GAINESVILLE, WHITE SPRINGS, CARRAWAY, TRENTON,
JACKSONVILLE, LAKE BUTLER, OLUSTEE, LAKESIDE, STATENVILLE, BLUE
SPRINGS, HIGH SPRINGS, BAKERSVILLE, WINFIELD, NEWBURN, BUTLER BEACH,
OLENO STATE PARK, RIVERSIDE, MIDDLEBURG, SEA ISLAND, RACE POND,
GAINESVILLE AIRPORT, WEST LAKE, SUWANNEE VALLEY, RATLIFF, LAKE CITY,
MACCLENNY, FRUIT COVE, PALATKA, SUWANNEE SPRINGS, NEEDMORE,
SWITZERLAND, BELMONT, NEW RIVER,
ORANGE PARK, DOCTORS INLET, PICOLATA, NORMANDY, TARBORO, ST.
GEORGE, AMELIA CITY, COLESBURG, ARLINGTON, HOMELAND, WATERTOWN, LIVE
OAK, GLYNN HAVEN, ARCHER, YULEE, GREEN COVE SPRINGS, STARKE,
NEWBERRY, SAINT AUGUSTINE, PONTE VEDRA BEACH, TALLYRAND, LULU,
DURBIN, PALM VALLEY, DUNGENESS, WOODBINE, BELLAIR, WAVERLY, JEKYLL
ISLAND, ANASTASIA, COUNTRY CLUB ESTATE, SAINT AUGUSTINE SHORE,
HILLIARD, SAINT AUGUSTINE BEACH, FOLKSTON, BRYCEVILLE,
MCALPIN, ST. SIMONS, HOMERVILLE, DOVER BLUFF, WINOKUR, ORTEGA,
JASPER, KINGSLAND, SUWANNEE RIVER STATION, AND COLUMBIA
1127 PM EDT TUE JUL 28 2026
..EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES OF 110 TO
115 EXPECTED.
* WHERE...PORTIONS OF NORTHEAST AND NORTHERN FLORIDA AND SOUTHEAST
GEORGIA.
* WHEN...FROM 11 AM TO 8 PM EDT WEDNESDAY.
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING
EXTREME HEAT AND HIGH HUMIDITY EVENTS.
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.
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.
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.
FLZ038-138-140-240-340-GAZ132>136-149-151-152-250-300000-
/O.CON.KJAX.HT.Y.0014.260729T1500Z-260730T0000Z/
INLAND FLAGLER-COASTAL FLAGLER-EASTERN MARION-CENTRAL MARION-
WESTERN MARION-COFFEE-JEFF DAVIS-BACON-APPLING-WAYNE-ATKINSON-
PIERCE-BRANTLEY-NORTHERN WARE-
INCLUDING THE CITIES OF HOBOKEN, HICKOX, OCALA, NEW LACY, ANDALUSIA,
BLACKSHEAR, BURBANK, WAYNESVILLE, ANTHONY, HAZLEHURST, RAYBON,
WILLACOOCHEE, PALM COAST, MOSS BLUFF, OCALA AIRPORT, GARDI, PLANT
HATCH, ALMA, DOCTORTOWN, PEARSON, WAYCROSS, BAXLEY, PINE GROVE,
HORTENSE, AXSON, ESPANOLA, DOUGLAS, LYNNE, BUNNELL, NAHUNTA, JESUP,
ATKINSON, WEIRSDALE, AND NEEDHAM
1127 PM EDT TUE JUL 28 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT
WEDNESDAY...
* WHAT...HEAT INDEX VALUES OF 108 TO 112 EXPECTED.
* WHERE...PORTIONS OF NORTHEAST AND NORTHERN FLORIDA AND SOUTHEAST
GEORGIA.
* WHEN...FROM 11 AM TO 8 PM EDT WEDNESDAY.
* 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.
FOR MORE INFORMATION, VISIT US AT WWW.WEATHER.GOV/JAX
HESS
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