Non-Precipitation Warnings / Watches / Advisories
Issued by NWS San Juan, PR

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609
WWCA72 TJSJ 030518
NPWSJU

URGENT - WEATHER MESSAGE
National Weather Service San Juan PR
118 AM AST Sun Aug 3 2025

PRZ001>005-007-008-010-011-032000-
/O.NEW.TJSJ.XH.W.0002.250803T1400Z-250803T2000Z/
San Juan and Vicinity-Northeast-Southeast-Eastern Interior-North
Central-Ponce and Vicinity-Northwest-Mayaguez and Vicinity-
Southwest-
Including the cities of Lajas, Luquillo, Yauco, Canovanas,
Juncos, Cabo Rojo, Rio Grande, Hormigueros, Patillas, Isabela,
Toa Baja, Comerio, Arroyo, Arecibo, Vega Alta, Caguas, Gurabo,
Naguabo, Salinas, Barceloneta, Aguada, Maunabo, Manati, Camuy,
Mayaguez, Juana Diaz, San Lorenzo, Las Piedras, Carolina,
Fajardo, Ponce, Catano, Bayamon, Moca, Cayey, Guayanilla, Anasco,
Cidra, Guayama, Loiza, San German, Guaynabo, Trujillo Alto,
Dorado, Vega Baja, Guanica, Penuelas, Yabucoa, San Juan,
Aguadilla, Aguas Buenas, Santa Isabel, Florida, Quebradillas,
Humacao, Ceiba, Hatillo, Toa Alta, and Rincon
118 AM AST Sun Aug 3 2025

...EXTREME HEAT WARNING IN EFFECT FROM 10 AM THIS MORNING TO 4 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 urban and low-elevated areas in Puerto Rico.

* WHEN...From 10 AM this morning to 4 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-VIZ001-002-032000-
/O.NEW.TJSJ.HT.Y.0028.250803T1400Z-250803T2000Z/
Culebra-Vieques-St.Thomas...St. John...and Adjacent Islands-St
Croix-
Including the cities of Frederiksted, Frederiksted Southeast,
Anna`s Retreat, Charlotte Amalie East, Christiansted, Charlotte
Amalie West, Grove Place, Culebra, Charlotte Amalie, Vieques, and
Cruz Bay
118 AM AST Sun Aug 3 2025

...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 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. In Virgin Islands, St
  Croix, St. Thomas, St. John, and Adjacent Islands Counties.

* WHEN...From 10 AM this morning to 4 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.

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.

&&

$$

CVB