513
WWUS72 KJAX 121341
NPWJAX

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

GAZ152-264-350-364-122300-
/O.EXA.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
Brantley-Northeastern Charlton-Southern Ware-Western Charlton-
Including the cities of Hoboken, St. George, Waynesville, Raybon,
Homeland, Atkinson, Hickox, Hortense, Nahunta, Winokur, Race Pond,
Folkston, and Stephen Foster State Park
941 AM EDT Wed Aug 12 2026

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...

* WHAT...Heat index values up to 109 expected.

* WHERE...Brantley, Northeastern Charlton, Southern Ware, and Western
  Charlton Counties.

* WHEN...Until 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.

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.

&&

$$

GAZ153-154-165-166-122300-
/O.CON.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
/O.CON.KJAX.XH.A.0002.260813T1500Z-260814T0000Z/
Inland Glynn-Coastal Glynn-Inland Camden-Coastal Camden-
Including the cities of Dover Bluff, Country Club Estate,
Kingsland, Waverly, Glynn Haven, St. Simons, Thalmann, Dungeness,
Dock Junction, Woodbine, Colesburg, Tarboro, Jekyll Island, and Sea
Island
941 AM EDT Wed Aug 12 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH
THURSDAY 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, until 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.

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.

&&

$$

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

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT THIS EVENING...

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

* WHERE...Northeast and north central Florida and portions of
  southeast Georgia.

* WHEN...Until 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.

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.

&&

$$

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

NELSON