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Extreme Heat Warning — Suwannee, FL, Baker, FL, Inland Nassau, FL, Union, FL, Bradford, FL, Gilchrist, FL, Eastern Hamilton, FL, Coastal Nassau, FL, Coastal Duval, FL, Eastern Clay, FL, Eastern Alachua, FL, Eastern Putnam, FL, Western Hamilton, FL, Trout River, FL, Western Clay, FL, Northeast Coastal St. Johns, FL, Western Alachua, FL, Western Putnam, FL, Northern Columbia, FL, South Central Duval, FL, Southeast Coastal St. Johns, FL, Southeastern Columbia, FL, Western Duval, FL, Northern Inland St. Johns, FL, Southwestern Columbia, FL, Southern Inland St. Johns, FL, Western St. Johns, FL, Inland Glynn, GA, Coastal Glynn, GA, Echols, GA, Clinch, GA, Inland Camden, GA, Coastal Camden, GA, Northeastern Charlton, GA, Southern Ware, GA, Western Charlton, GA
Issued
10:00 AM CDT · Wed, Jul 29 2026
Expires
7:00 PM CDT · Wed, Jul 29 2026
Issuing Office
NWS KJAX

Affected Areas

Suwannee, FL Baker, FL Inland Nassau, FL Union, FL Bradford, FL Gilchrist, FL Eastern Hamilton, FL Coastal Nassau, FL Coastal Duval, FL Eastern Clay, FL Eastern Alachua, FL Eastern Putnam, FL Western Hamilton, FL Trout River, FL Western Clay, FL Northeast Coastal St. Johns, FL Western Alachua, FL Western Putnam, FL Northern Columbia, FL South Central Duval, FL Southeast Coastal St. Johns, FL Southeastern Columbia, FL Western Duval, FL Northern Inland St. Johns, FL Southwestern Columbia, FL Southern Inland St. Johns, FL Western St. Johns, FL Inland Glynn, GA Coastal Glynn, GA Echols, GA Clinch, GA Inland Camden, GA Coastal Camden, GA Northeastern Charlton, GA Southern Ware, GA Western Charlton, GA

Official Bulletin

* WHAT...Dangerously hot conditions with heat index values of 110 to
115 expected.

* WHERE...Portions of northeast and northern Florida and southeast
Georgia.

* WHEN...From 11 AM to 8 PM EDT Wednesday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

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.