Headline:
Heat Advisory issued August 21 at 10:31AM AST until August 21 at 5:00PM AST by NWS San Juan PR
Event:
Heat Advisory
Urgency:
Expected
Effective:
August 21, 2026 - 7:31am
Expires:
August 21, 2026 - 2:00pm
Description:
* WHAT...This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration.
* WHERE...Portions of Puerto Rico and U.S. Virgin Islands.
* WHEN...Until 5 PM AST this afternoon.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Instruction:
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.
Area Description:
San Juan and Vicinity; Northeast; Southeast; Eastern Interior; North Central; Ponce and Vicinity; Northwest; Mayaguez and Vicinity; Southwest; Culebra; Vieques; St.Thomas...St. John.. and Adjacent Islands; St Croix
Forcast Office:
NWS San Juan PR
Sender:
w-nws.webmaster@noaa.gov