Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Jacksonville FL
705 PM EDT Thu Aug 20 2026
FLZ038-125-132-137-138-232-233-237-325-333-433-533-633-211700-
/O.EXP.KJAX.HT.Y.0025.000000T0000Z-260820T2300Z/
/O.CON.KJAX.HT.Y.0026.260821T1500Z-260821T2300Z/
Inland Flagler-Coastal Duval-Eastern Clay-Eastern Putnam-Coastal
Flagler-Western Clay-Northeast Coastal St. Johns-Western Putnam-
South Central Duval-Southeast Coastal St. Johns-Northern Inland
St. Johns-Southern Inland St. Johns-Western St. Johns-
Including the cities of Ortega, Ponte Vedra Beach, Saint Augustine
South, Anastasia, Green Cove Springs, Switzerland, Picolata, Saint
Augustine Beach, Bakersville, Fruit Cove, Doctors Inlet,
Jacksonville, Espanola, Arlington, Middleburg, Lakeside, Carraway,
Palm Coast, Saint Augustine Shore, Bostwick, Andalusia, Tallyrand,
Orange Park, Oceanway, Palm Valley, Dupont Center, Bellair,
Riverside, San Marco, Palatka, Butler Beach, Saint Augustine,
Bunnell, and Durbin
705 PM EDT Thu Aug 20 2026
...HEAT ADVISORY FOR TODAY HAS EXPIRED...
...HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 7 PM EDT FRIDAY...
* WHAT...Heat index values up to 109 expected.
* WHERE...A portion of northeast Florida.
* WHEN...From 11 AM to 7 PM EDT Friday.
* 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.
&&
$$