Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Jacksonville, FL
Issued by NWS Jacksonville, FL
332 WWUS72 KJAX 181632 NPWJAX URGENT - WEATHER MESSAGE National Weather Service Jacksonville FL 1232 PM EDT Tue Aug 18 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- 154-162-165-166-190015- /O.NEW.KJAX.HT.Y.0024.260819T1500Z-260820T0000Z/ /O.CON.KJAX.XH.W.0006.000000T0000Z-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-Inland Glynn-Coastal Glynn-Echols-Inland Camden- Coastal Camden- Including the cities of Dungeness, Statenville, Colesburg, Suwannee Valley, Bostwick, Watertown, Bellair, Newberry, Suwannee Springs, Anthony, Durbin, Olustee, Tarboro, Palm Coast, Gainesville Airport, Palatka, White Springs, Jennings, Weirsdale, Bunnell, Jasper, Yulee, Needmore, Doctors Inlet, Lake City, Anastasia, Suwannee River Station, Saint Augustine South, Arlington, Andalusia, Houston, Fruit Cove, Newnans Lake, New River, Amelia City, Green Cove Springs, Palm Valley, Dock Junction, Burbank, Saint Augustine, Carraway, Ortega, Kings Ferry, Belmont, Middleburg, Normandy, Orange Park, Blue Springs, Sea Island, Ocala Airport, Starke, West Lake, Fernandina Beach, Oleno State Park, Lake Butler, Macclenny, Bryceville, Archer, Glynn Haven, Jekyll Island, Lulu, Winfield, Bakersville, Thalmann, Woodbine, Country Club Estate, Saint Augustine Beach, Moss Bluff, Trenton, Dover Bluff, Oceanway, Kingsland, Saint Augustine Shore, Dupont Center, Lynne, Waverly, Tallyrand, McAlpin, Picolata, Live Oak, Columbia, St. Simons, Butler Beach, Lakeside, San Marco, Riverside, Ratliff, Gainesville, Ponte Vedra Beach, Ocala, Newburn, Hilliard, Espanola, Switzerland, High Springs, and Jacksonville 1232 PM EDT Tue Aug 18 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY... ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 113. For the Heat Advisory, heat index values up to 112 expected. * WHERE...Portions of northeast and northern Florida and southeast Georgia. * WHEN...For the Extreme Heat Warning, until 8 PM EDT this evening. For the Heat Advisory, from 11 AM to 8 PM EDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. 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. Stay cool, stay hydrated, stay informed. && $$ GAZ163-264-350-364-190015- /O.NEW.KJAX.HT.Y.0024.260819T1500Z-260820T0000Z/ /O.CON.KJAX.HT.Y.0023.000000T0000Z-260819T0000Z/ Clinch-Northeastern Charlton-Southern Ware-Western Charlton- Including the cities of Stephen Foster State Park, Homeland, Folkston, Homerville, St. George, Winokur, and Race Pond 1232 PM EDT Tue Aug 18 2026 ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM EDT WEDNESDAY... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...For the first Heat Advisory, heat index values up to 111. For the second Heat Advisory, heat index values up to 109 expected. * WHERE...Clinch, Northeastern Charlton, Southern Ware, and Western Charlton Counties. * WHEN...For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from 11 AM to 8 PM EDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. && $$ GAZ132>136-149-151-152-250-190000- /O.CON.KJAX.HT.Y.0023.000000T0000Z-260819T0000Z/ Coffee-Jeff Davis-Bacon-Appling-Wayne-Atkinson-Pierce-Brantley- Northern Ware- Including the cities of Hoboken, New Lacy, Atkinson, Needham, Waycross, Nahunta, Jesup, Douglas, Hickox, Alma, Waynesville, Axson, Gardi, Hazlehurst, Willacoochee, Raybon, Plant Hatch, Doctortown, Hortense, Blackshear, Baxley, Pine Grove, and Pearson 1232 PM EDT Tue Aug 18 2026 ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * WHAT...Heat index values up to 110. * WHERE...Appling, Atkinson, Bacon, Brantley, Coffee, Jeff Davis, Northern Ware, Pierce, and Wayne Counties. * WHEN...Until 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 ENYEDI