368
WWCA72 TJSJ 310855
NPWSJU

URGENT - WEATHER MESSAGE
National Weather Service San Juan PR
455 AM AST Sun Aug 31 2025

PRZ001>005-007-008-010>013-VIZ001-002-312100-
/O.NEW.TJSJ.XH.W.0009.250831T1400Z-250831T2100Z/
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-
Including the cities of Isabela, Hormigueros, Lajas, San German,
Humacao, Barceloneta, Comerio, Anna`s Retreat, Aguadilla,
Naguabo, Ponce, Maunabo, Florida, Vega Baja, Hatillo, Guayama,
Guaynabo, Salinas, Toa Baja, Charlotte Amalie, Charlotte Amalie
West, Vega Alta, Grove Place, Guayanilla, Aguada, Las Piedras,
San Juan, Catano, Vieques, Arroyo, Carolina, Santa Isabel,
Patillas, Loiza, Aguas Buenas, Mayaguez, Toa Alta, Rio Grande,
Juana Diaz, Frederiksted, Frederiksted Southeast, Caguas,
Penuelas, Yabucoa, Cayey, Gurabo, Manati, Quebradillas, Rincon,
Trujillo Alto, Cruz Bay, Christiansted, Dorado, Anasco, Fajardo,
San Lorenzo, Juncos, Yauco, Camuy, Cidra, Cabo Rojo, Culebra,
Arecibo, Bayamon, Moca, Charlotte Amalie East, Canovanas,
Luquillo, Ceiba, and Guanica
455 AM AST Sun Aug 31 2025

...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 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...All coastal and urban areas of Puerto Rico, as well as the
  valleys of the eastern interior. St. Thomas, St. John, St. Croix,
  Vieques and Culebra.

* WHEN...From 10 AM this morning to 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.

Stay cool, stay hydrated, stay informed.

Monitor the latest forecasts and warnings for updates.

&&

$$

MRR