838 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