821
WWCA72 TJSJ 041347
NPWSJU
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN JUAN PR
947 AM AST FRI SEP 4 2026
PRZ001>013-VIZ001-002-042100-
/O.CON.TJSJ.HT.Y.0051.260904T1400Z-260904T2100Z/
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-
INCLUDING THE CITIES OF CRUZ BAY, CAYEY, JAYUYA, CIALES, BAYAMON,
GROVE PLACE, JUANA DIAZ, PENUELAS, MOROVIS, QUEBRADILLAS, CAMUY,
GUAYAMA, HATILLO, CEIBA, AGUAS BUENAS, CAGUAS, GUANICA, SAN LORENZO,
ANASCO, OROCOVIS, MARICAO, CANOVANAS, CHARLOTTE AMALIE WEST, COAMO,
LOIZA, SAN SEBASTIAN, GURABO, TOA ALTA, ADJUNTAS,
SANTA ISABEL, ANNA'S RETREAT, FREDERIKSTED SOUTHEAST, GUAYNABO,
SAN GERMAN, FREDERIKSTED, BARRANQUITAS, CAROLINA, VIEQUES, LAS
PIEDRAS, CHRISTIANSTED, VEGA BAJA, NAGUABO, RIO GRANDE, MAYAGUEZ,
GUAYANILLA, SABANA GRANDE, CABO ROJO, CIDRA, VEGA ALTA, VILLALBA,
ISABELA, AGUADILLA, MOCA, AGUADA, HORMIGUEROS, TRUJILLO ALTO,
COMERIO, YABUCOA, ARECIBO, MAUNABO, CULEBRA, SALINAS, HUMACAO, LARES,
AIBONITO, SAN JUAN, MANATI, YAUCO, ARROYO, DORADO, NARANJITO, TOA
BAJA, LAJAS, LUQUILLO, CHARLOTTE AMALIE, COROZAL, BARCELONETA,
FAJARDO, JUNCOS, UTUADO, PATILLAS, PONCE, FLORIDA, RINCON, CATANO,
CHARLOTTE AMALIE EAST, AND LAS MARIAS
947 AM AST FRI SEP 4 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 5 PM AST THIS AFTERNOON
* WHAT...THIS LEVEL OF HEAT AFFECTS MOST INDIVIDUALS SENSITIVE TO
HEAT, ESPECIALLY THOSE WITHOUT EFFECTIVE COOLING AND/OR ADEQUATE
HYDRATION.
* WHERE...PUERTO RICO AND THE US VIRGIN ISLANDS.
* WHEN...UNTIL 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
DSR
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