860
WWUS72 KJAX 180003
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
803 PM EDT Mon Aug 17 2026

GAZ153-154-165-166-180815-
/O.EXP.KJAX.XH.W.0005.000000T0000Z-260818T0000Z/
/O.CON.KJAX.XH.W.0006.260818T1500Z-260819T0000Z/
Inland Glynn-Coastal Glynn-Inland Camden-Coastal Camden-
Including the cities of Sea Island, Dock Junction, Dungeness,
Colesburg, Kingsland, Jekyll Island, Thalmann, Dover Bluff, Glynn
Haven, Waverly, St. Simons, Country Club Estate, Tarboro, and
Woodbine
803 PM EDT Mon Aug 17 2026

...EXTREME HEAT WARNING HAS EXPIRED...
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT
TUESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 113
  expected.

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

* WHEN...From 11 AM to 8 PM EDT Tuesday.

* 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.

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.

&&

$$

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-
180815-
/O.EXP.KJAX.HT.Y.0022.000000T0000Z-260818T0000Z/
/O.CON.KJAX.XH.W.0006.260818T1500Z-260819T0000Z/
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 Suwannee River Station, Starke, Houston,
Arlington, Espanola, Lake Butler, Saint Augustine, Live Oak, Palatka,
Middleburg, Gainesville Airport, Bryceville, Hilliard, Watertown,
Bunnell, Bostwick, White Springs, Trenton, Normandy, Lakeside, Orange
Park, Switzerland, Lake City, High Springs, Oleno State Park,
Winfield, Blue Springs, Lynne, Bakersville, Ortega, Moss Bluff,
Gainesville, Saint Augustine South, Archer, Doctors Inlet, Palm
Coast, Picolata, Durbin, Anastasia, Burbank, Belmont, Jennings,
Yulee, Jacksonville, Macclenny, Suwannee Springs, Ponte Vedra Beach,
Ratliff, New River, Fruit Cove, Butler Beach, Dupont Center,
Tallyrand, Newberry, Kings Ferry, Amelia City, Green Cove Springs,
Palm Valley, Oceanway, Lulu, Weirsdale, Fernandina Beach, McAlpin,
Needmore, Bellair, Carraway, Columbia, Jasper, San Marco, Newnans
Lake, Saint Augustine Shore, West Lake, Newburn, Suwannee Valley,
Andalusia, Olustee, Riverside, Ocala, Anthony, Statenville, Saint
Augustine Beach, and Ocala Airport
803 PM EDT Mon Aug 17 2026

...HEAT ADVISORY HAS EXPIRED...
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT
TUESDAY...

* WHAT...Dangerously hot conditions with heat index values up to 114
  expected.

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

* WHEN...From 11 AM to 8 PM EDT Tuesday.

* 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.

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.

&&

$$

GAZ132>136-149-151-152-163-250-264-350-364-180815-
/O.EXP.KJAX.HT.Y.0022.000000T0000Z-260818T0000Z/
/O.CON.KJAX.HT.Y.0023.260818T1500Z-260819T0000Z/
Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce-Brantley-
Clinch-Northern Ware-Northeastern Charlton-Southern Ware-Western
Charlton-
Including the cities of Pine Grove, Nahunta, Needham, Willacoochee,
Winokur, New Lacy, Hazlehurst, Waynesville, Jesup,
Homeland, Hoboken, Doctortown, Stephen Foster State Park, St.
George, Gardi, Homerville, Atkinson, Axson, Waycross, Raybon,
Pearson, Douglas, Baxley, Alma, Hortense, Blackshear, Hickox, Plant
Hatch, Folkston, and Race Pond
803 PM EDT Mon Aug 17 2026

...HEAT ADVISORY HAS EXPIRED...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT TUESDAY...

* WHAT...Heat index values up to 112 expected.

* WHERE...A portion of southeast Georgia.

* WHEN...From 11 AM to 8 PM EDT Tuesday.

* 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.

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

KB