109
WWUS72 KJAX 120622
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
222 AM EDT Wed Aug 12 2026

GAZ153-154-165-166-130000-
/O.NEW.KJAX.XH.A.0002.260813T1500Z-260814T0000Z/
/O.CON.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
Inland Glynn-Coastal Glynn-Inland Camden-Coastal Camden-
Including the cities of Sea Island, Country Club Estate, Dungeness,
Woodbine, Glynn Haven, Tarboro, Waverly, Colesburg,
Kingsland, Dock Junction, Thalmann, Jekyll Island, St. Simons,
and Dover Bluff
222 AM EDT Wed Aug 12 2026

...EXTREME HEAT WATCH IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY EVENING...
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

* WHAT...For the Heat Advisory, heat index values up to 110 expected.
  For the Extreme Heat Watch, dangerously hot conditions with heat
  index values up to 113 possible.

* WHERE...Coastal Camden, Coastal Glynn, Inland Camden, and Inland
  Glynn Counties.

* WHEN...For the Heat Advisory, from noon today to 7 PM EDT this
  evening. For the Extreme Heat Watch, from Thursday morning through
  Thursday evening.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. 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.

&&

$$

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-GAZ162-
122300-
/O.CON.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
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-Echols-
Including the cities of Dupont Center, Suwannee Valley, Ratliff,
Gainesville Airport, Picolata, Oceanway, Ortega, Saint Augustine
Shore, Ocala, Bunnell, Bakersville, Saint Augustine Beach, Normandy,
Orange Park, Carraway, Lulu, Houston, Saint Augustine South, Newnans
Lake, Blue Springs, Palm Valley, Anthony, Trenton, Winfield,
Anastasia, Bellair, Gainesville, Lakeside, Burbank, Statenville, West
Lake, Green Cove Springs, Columbia, Oleno State Park, Saint
Augustine, Lake Butler, Moss Bluff, New River, Yulee, Jacksonville,
Olustee, High Springs, Fruit Cove, Ocala Airport, Durbin, Lynne,
Watertown, Suwannee Springs, Belmont, Hilliard, Starke, Newburn,
Arlington, Ponte Vedra Beach, Switzerland, Riverside, Doctors Inlet,
Fernandina Beach, Bostwick, Tallyrand, San Marco, Butler Beach,
Andalusia, Kings Ferry, Newberry, Bryceville, Suwannee River Station,
Jasper, Middleburg, McAlpin, Archer, Jennings, Needmore, Espanola,
Live Oak, Palm Coast, Palatka, Macclenny, White Springs, Lake City,
Weirsdale, and Amelia City
222 AM EDT Wed Aug 12 2026

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS
EVENING...

* WHAT...Heat index values up to 110 expected.

* WHERE...Portions of northeast and northern Florida and southeast
  Georgia.

* WHEN...From noon today to 7 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.

&&

$$

For more information, visit us at www.weather.gov/jax