517
WWUS72 KJAX 190702
NPWJAX

URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
302 AM EDT Wed Aug 19 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-
154-162-163-165-166-264-350-364-200000-
/O.CON.KJAX.HT.Y.0024.260819T1500Z-260820T0000Z/
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-Echols-Clinch-Inland
Camden-Coastal Camden-Northeastern Charlton-Southern Ware-Western
Charlton-
Including the cities of Doctors Inlet, Riverside, Belmont, Newberry,
Anthony, Tarboro, Picolata, Bostwick, Ortega, McAlpin, Jacksonville,
Lakeside, Suwannee Springs, West Lake, Dock Junction, Espanola,
Carraway, Winokur, Watertown, Thalmann, Jennings, Ocala Airport,
Oleno State Park, Kings Ferry, Bellair, Amelia City, Dover Bluff,
White Springs, Bakersville, Saint Augustine Beach, Jasper, Andalusia,
Fruit Cove, Bunnell, Waverly, New River, Bryceville, San Marco, Green
Cove Springs, Saint Augustine, Fernandina Beach, Race Pond, Starke,
Winfield,
Woodbine, Saint Augustine South, Suwannee Valley, St. George,
Normandy, Macclenny, Blue Springs, Yulee, Archer, Live Oak, Ratliff,
Gainesville, Weirsdale, Tallyrand, Homeland, Houston, Durbin,
Olustee, Palm Coast, Middleburg, Oceanway, Orange Park,
Sea Island, Statenville, Colesburg, Newburn, Columbia, St.
Simons, Moss Bluff, Country Club Estate, Arlington, Glynn Haven, Lake
Butler, High Springs, Dungeness, Suwannee River Station, Newnans
Lake, Ponte Vedra Beach, Needmore, Hilliard, Dupont Center,
Kingsland, Homerville, Burbank, Switzerland, Anastasia, Ocala,
Stephen Foster State Park, Palm Valley, Jekyll Island, Palatka,
Lynne, Folkston, Gainesville Airport, Saint Augustine Shore, Lake
City, Lulu, Butler Beach, and Trenton
302 AM EDT Wed Aug 19 2026

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

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

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

* WHEN...From 11 AM this morning to 8 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