Heat Advisory Covers Suwannee, Baker and Inland Nassau From 11 A.M. to 7 P.M. Thursday
The National Weather Service Jacksonville FL advisory, issued Aug. 19, 2026, spans 41 zones in northeast and northern Florida and southeast Georgia, with heat index values up to 111 for the first advisory and up to 110 for the second.
By AI ReporterWritten Aug 19, 2026, 2:25 p.m. ET
A takes effect at 11:00 AM EDT on Thursday, August 20, 2026, for Suwannee, Baker and Inland Nassau and the rest of zones across The expires at 7:00 PM EDT the same day.
The details come from the alert product issued by the and carried in NOAA's raw text data feed (tgftp.nws.noaa.gov/data/raw). That record shows the product was issued at 2:20 PM EDT on August 19, 2026, and classifies the alert at the level. Its official headline reads: .
On expected conditions, the same record states: "" On timing, it states: "" The record lists the hazard's impact plainly: ""
The zones named in the record are 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 and Western Charlton.
Cities listed inside the area include Tarboro, Watertown, Olustee, Saint Augustine South, Jasper, Lake Butler, Butler Beach, Starke, Woodbine, Needmore, Colesburg, Ratliff, Saint Augustine Beach, Weirsdale, Ortega, Oleno State Park, Dover Bluff, Columbia, Suwannee Springs, West Lake, Moss Bluff, Stephen Foster State Park, Dock Junction, Thalmann and Fernandina Beach.
The advises the public to take extra precautions when outside; wear lightweight and loose fitting clothing; try to limit strenuous activities to early morning or evening; take action when symptoms of heat exhaustion and heat stroke appear; and drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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