Headline:
Heat Advisory issued September 19 at 2:33AM AST until September 19 at 5:00PM AST by NWS San Juan PR
Event:
Heat Advisory
Urgency:
Expected
Effective:
September 18, 2026 - 11:33pm
Expires:
September 19, 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...All of Puerto Rico, including Vieques and Culebra, and the
U.S. Virgin Islands.
* WHEN...From 10 AM this morning to 5 PM AST this afternoon.
* IMPACTS...High temperatures or elevated heat indices can worsen
symptoms in people with chronic conditions. They can also increase
the risk of heat-related illness among individuals sensitive to
heat with inadequate cooling or hydration. These risks are highest
across coastal areas, lowlands, interior valleys, and urban zones.
Instruction:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
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; Central Interior; Ponce and Vicinity; Northwest; Western Interior; 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