388
WWUS72 KJAX 131649
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
1249 PM EDT Thu Aug 13 2026

GAZ153-154-165-166-140100-
/O.UPG.KJAX.XH.A.0003.260814T1500Z-260815T0000Z/
/O.NEW.KJAX.XH.W.0003.260814T1500Z-260815T0000Z/
/O.CON.KJAX.XH.W.0002.000000T0000Z-260814T0000Z/
Inland Glynn-Coastal Glynn-Inland Camden-Coastal Camden-
Including the cities of Dover Bluff, Jekyll Island, St. Simons,
Woodbine, Glynn Haven, Colesburg, Thalmann, Tarboro, Waverly,
Kingsland, Sea Island, Country Club Estate, Dock Junction, and
Dungeness
1249 PM EDT Thu Aug 13 2026

...EXTREME HEAT WARNING IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY...
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...For the first Extreme Heat Warning, dangerously hot
  conditions with heat index values up to 113. For the second Extreme
  Heat Warning, dangerously hot conditions with heat index values up
  to 113 expected.

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

* WHEN...For the first Extreme Heat Warning, until 8 PM EDT this
  evening. For the second Extreme Heat Warning, from 11 AM to 8 PM
  EDT Friday.

* 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.

&&

$$

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-GAZ136-
151-152-162-163-250-264-350-364-140100-
/O.NEW.KJAX.HT.Y.0019.260814T1500Z-260815T0000Z/
/O.CON.KJAX.HT.Y.0018.000000T0000Z-260814T0000Z/
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-Wayne-Pierce-Brantley-Echols-Clinch-Northern
Ware-Northeastern Charlton-Southern Ware-Western Charlton-
Including the cities of Lake Butler, Andalusia, Nahunta, Saint
Augustine, Switzerland, Newnans Lake, Statenville, St. George,
Doctortown, Atkinson, Bellair, Suwannee River Station, Normandy,
Gardi, Palm Valley, Starke, Jacksonville, Tallyrand, Weirsdale,
Ratliff, Raybon, Saint Augustine Beach, Riverside, Bryceville, Ocala,
Houston, Columbia, Archer, Oleno State Park, Fruit Cove, Palatka,
Jesup, Winokur, White Springs, Newberry, Green Cove Springs,
Gainesville, McAlpin, Bostwick, Lakeside, Bakersville, Olustee,
Butler Beach, Dupont Center, Newburn, Blue Springs, Gainesville
Airport, Belmont, Waynesville, Anastasia, Waycross, Homeland,
Jennings, Moss Bluff, West Lake, Needham, Suwannee Valley, Race Pond,
Kings Ferry, Ortega, Ponte Vedra Beach, San Marco, Bunnell,
Macclenny, Winfield, Homerville, Lynne, Carraway, Saint Augustine
South, Fernandina Beach, Trenton, Anthony, Amelia City, Suwannee
Springs, Hoboken, High Springs, Burbank, Doctors Inlet, Durbin,
Middleburg, Needmore, Lake City, New River, Yulee, Espanola, Ocala
Airport, Orange Park, Watertown, Hortense, Folkston, Live Oak,
Hickox, Arlington, Blackshear, Lulu, Saint Augustine Shore, Hilliard,
Palm Coast, Stephen Foster State Park, Picolata, Jasper, and Oceanway
1249 PM EDT Thu Aug 13 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...For the first Heat Advisory, heat index values up to 111.
  For the second Heat Advisory, heat index values up to 111 expected.

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

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening.
  For the second Heat Advisory, from 11 AM to 8 PM EDT Friday.

* 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.

&&

$$

GAZ132>135-149-140100-
/O.NEW.KJAX.HT.Y.0019.260814T1500Z-260815T0000Z/
/O.CON.KJAX.HT.Y.0018.000000T0000Z-260814T0000Z/
Coffee-Jeff Davis-Bacon-Appling-Atkinson-
Including the cities of New Lacy, Willacoochee, Baxley, Pearson,
Douglas, Axson, Hazlehurst, Pine Grove, Alma, and Plant Hatch
1249 PM EDT Thu Aug 13 2026

...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT FRIDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...For the first Heat Advisory, heat index values up to 108.
  For the second Heat Advisory, heat index values up to 108 expected.

* WHERE...Appling, Atkinson, Bacon, Coffee, and Jeff Davis Counties.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening.
  For the second Heat Advisory, from 11 AM to 8 PM EDT Friday.

* 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

PK