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Sunday, Aug 16, 2026 09:47:33

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Heat Advisory 0016
Issued by the Jacksonville Forecast Office

Action Issued Starts Expiration
New 2026-08-10 23:04:53 2026-08-11 11:00:00 2026-08-11 18:00:00
Continued 2026-08-11 11:44:46 2026-08-11 18:00:00


Action: New
Issued At: 2026-08-10 23:04:53

520 
WWUS72 KJAX 110404
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
1204 AM EDT Tue Aug 11 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-
154-165-166-112300-
/O.NEW.KJAX.HT.Y.0016.260811T1600Z-260811T2300Z/
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-Inland Camden-
Coastal Camden-
Including the cities of Starke, Houston, Belmont, Riverside, Olustee,
Suwannee River Station, Thalmann, Winfield, Saint Augustine Shore,
High Springs, Hilliard, New River, Newberry, Country Club Estate,
Saint Augustine Beach, Orange Park, Tallyrand, Lulu, Dock Junction,
Sea Island, Normandy, Dungeness, Newnans Lake, Archer, Oleno State
Park, Picolata, Suwannee Valley, Blue Springs, Bakersville,
Weirsdale, Saint Augustine South, Ocala, Fruit Cove, Live Oak, Butler
Beach, Bunnell, Gainesville Airport, Middleburg, Colesburg,
Andalusia, Burbank, Anthony, Green Cove Springs, Lakeside, Lake
Butler, Oceanway, Espanola, Trenton, Tarboro, Newburn, Suwannee
Springs, Columbia,
Durbin, Ratliff, St. Simons, Kings Ferry, Yulee, White Springs,
Bostwick, Arlington, Carraway, Doctors Inlet, Ortega, Switzerland,
Saint Augustine, Dupont Center, Kingsland, Dover Bluff, Jennings,
West Lake, Palatka, Anastasia, Waverly, McAlpin, Lake City,
Fernandina Beach, Ponte Vedra Beach, Jacksonville, Bellair,
Watertown, Palm Coast, Bryceville, Glynn Haven, Ocala Airport, Moss
Bluff, Palm Valley, Jasper, Gainesville, Macclenny, Jekyll Island,
Lynne, San Marco, Amelia City, and Woodbine
1204 AM EDT Tue Aug 11 2026

...HEAT ADVISORY 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

KB


Action: Continued
Issued At: 2026-08-11 11:44:46

792 
WWUS72 KJAX 111644
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
1244 PM EDT Tue Aug 11 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-
154-165-166-120045-
/O.NEW.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
/O.CON.KJAX.HT.Y.0016.000000T0000Z-260811T2300Z/
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-Inland Camden-
Coastal Camden-
Including the cities of Doctors Inlet, Green Cove Springs,
Columbia, St. Simons, San Marco, Jasper, McAlpin, Orange Park,
Amelia City, Newnans Lake, Fruit Cove, Macclenny, Espanola,
Arlington, Saint Augustine Beach, Bellair, Butler Beach, Ratliff,
Bostwick, Anastasia, West Lake, Dock Junction, Jacksonville,
Middleburg, Carraway, Starke, Gainesville Airport, Anthony, Jennings,
Switzerland, Glynn Haven, Bryceville, Weirsdale, Bakersville,
Colesburg, Winfield, Durbin, Bunnell, Palm Valley, Blue Springs,
Ocala, Ortega, Lake City, Oceanway, Lynne, Kings Ferry, Dungeness,
Lulu, Kingsland, Ocala Airport, Hilliard, Tallyrand, Live Oak, Dover
Bluff, Oleno State Park, Woodbine, Olustee, Houston, Jekyll Island,
White Springs, Newberry, Andalusia, Normandy, Suwannee Springs,
Tarboro, Lakeside, Saint Augustine South, Saint Augustine, Riverside,
Waverly, New River, Gainesville, Suwannee Valley, Lake Butler,
Newburn, Burbank, Picolata, Palm Coast, Trenton, Suwannee River
Station, Watertown, Dupont Center, Yulee, Country Club Estate,
Belmont, Saint Augustine Shore, Ponte Vedra Beach, High Springs,
Palatka, Archer, Sea Island, Thalmann, Fernandina Beach, and Moss
Bluff
1244 PM EDT Tue Aug 11 2026

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

* WHAT...For the first Heat Advisory, heat index values up to 109.
  For the second Heat Advisory, heat index values up to 110 expected.

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

* WHEN...For the first Heat Advisory, until 7 PM EDT this evening.
  For the second Heat Advisory, from noon to 7 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.

&&

$$

GAZ162-120045-
/O.NEW.KJAX.HT.Y.0017.260812T1600Z-260812T2300Z/
Echols-
Including the cities of Statenville and Needmore
1244 PM EDT Tue Aug 11 2026

...HEAT ADVISORY IN EFFECT FROM NOON TO 7 PM EDT WEDNESDAY...

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

* WHERE...Echols County.

* WHEN...From noon to 7 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

PK



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