443
WWCA72 TJSJ 281454
NPWSJU

URGENT - WEATHER MESSAGE
National Weather Service San Juan PR
1054 AM AST Thu Aug 28 2025

PRZ001>005-007-008-010-011-282100-
/O.CON.TJSJ.XH.W.0006.000000T0000Z-250828T2100Z/
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North
Central-Ponce and Vicinity-Northwest-Mayaguez and Vicinity-
Southwest-
Including the cities of Catano, Santa Isabel, Trujillo Alto, San
Lorenzo, San German, Ponce, Cabo Rojo, Moca, Ceiba, Guayanilla,
Guaynabo, Barceloneta, Florida, Dorado, Aguas Buenas, Salinas,
Yauco, Camuy, Arroyo, Bayamon, Toa Baja, Cidra, Las Piedras,
Naguabo, Penuelas, Luquillo, Aguadilla, Hatillo, Hormigueros,
Lajas, Guayama, Caguas, Toa Alta, Vega Baja, Juana Diaz, Anasco,
Yabucoa, Isabela, Quebradillas, Guanica, Gurabo, Juncos,
Mayaguez, Maunabo, Fajardo, Comerio, Manati, Rincon, Loiza, San
Juan, Cayey, Carolina, Patillas, Aguada, Humacao, Canovanas, Rio
Grande, Arecibo, and Vega Alta
1054 AM AST Thu Aug 28 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 5 PM AST THIS
AFTERNOON...

* WHAT...This level of heat affects anyone without effective cooling
  and/or adequate hydration. Impacts likely in some health systems,
  heat-sensitive industries and infrastructure.

* WHERE...Eastern Interior, Mayaguez and Vicinity, North Central,
  Northeast, Northwest, Ponce and Vicinity, San Juan and Vicinity,
  Southeast, and Southwest Counties.

* WHEN...Until 5 PM AST this afternoon.

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

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.

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.

&&

$$

PRZ012-013-VIZ001-002-282100-
/O.CON.TJSJ.HT.Y.0048.000000T0000Z-250828T2100Z/
Culebra-Vieques-St.Thomas...St. John...and Adjacent Islands-St
Croix-
Including the cities of Frederiksted Southeast, Charlotte Amalie
West, Charlotte Amalie East, Charlotte Amalie, Culebra, Grove
Place, Cruz Bay, Anna`s Retreat, Vieques, Christiansted, and
Frederiksted
1054 AM AST Thu Aug 28 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 5 PM AST THIS AFTERNOON...

* WHAT...This level of heat affect most individuals sensitive to
  heat, especially those without effective cooling and/or adequate
  hydration. Impacts possible in some health system and in
  heat-sensitive industries.

* WHERE...In Puerto Rico, Culebra and Vieques Counties. In Virgin
  Islands, St Croix and St. Thomas, St. John, and Adjacent Islands
  Counties.

* WHEN...Until 5 PM AST this afternoon.

* 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.

&&

$$

CAM