Alert archive / Florida / Heat Advisories in 2026
Heat Advisory 21, NWS Jacksonville, FL
NWS Jacksonville, FL issued this heat advisory at Aug 15, 2026, 11:49 AM EDT for 15 counties in Florida; 14 counties in Georgia. It took effect at Aug 16, 2026, 11:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Aug 15, 2026, 11:49 AM EDT (15:49 UTC)
- In effect from
- Aug 16, 2026, 11:00 AM EDT
- Expired
- Aug 16, 2026, 8:00 PM EDT
- In force
- 9 hr
- Issued by
- NWS Jacksonville, FL
All 29 counties
Alachua County, FL, Baker County, FL, Bradford County, FL, Clay County, FL, Columbia County, FL, Duval County, FL, Flagler County, FL, Gilchrist County, FL, Hamilton County, FL, Marion County, FL, Nassau County, FL, Putnam County, FL, Saint Johns County, FL, Suwannee County, FL, Union County, FL, Appling County, GA, Atkinson County, GA, Bacon County, GA, Brantley County, GA, Camden County, GA, Charlton County, GA, Clinch County, GA, Coffee County, GA, Echols County, GA, Glynn County, GA, Jeff Davis County, GA, Pierce County, GA, Ware County, GA, Wayne County, GA
The radar
The Jacksonville radar (KJAX), 53 km from the middle of the area, began a volume at 15:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The office that day
Everything else NWS Jacksonville, FL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 8:43 PM EDT | Areal Flood Advisory | JAX | Columbia, Gilchrist, Suwannee | 2 hr |
| Aug 14, 8:44 PM EDT | Special Weather Statement | JAX | Gilchrist | 16 min |
| Aug 14, 9:49 PM EDT | Areal Flood Advisory | JAX | Alachua, Gilchrist | 76 min |
| Aug 15, 12:02 AM EDT | Extreme Heat Warning | JAX | Brantley, Camden, Glynn | 20 hr |
Nearby
Heat Advisories in Florida, 2026Heat Advisories in Georgia, 2026Every heat advisory in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.