137  
WWCA72 TJSJ 301819  
NPWSJU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN JUAN PR  
219 PM AST THU OCT 30 2025  
 
PRZ001>005-007-008-010>013-VIZ001-002-302100-  
/O.CON.TJSJ.HT.Y.0081.000000T0000Z-251030T2100Z/  
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 CAROLINA, JUNCOS, TOA BAJA, RIO GRANDE,  
ARECIBO, ANNA'S RETREAT, AGUADILLA, CRUZ BAY, MOCA, CEIBA, VEGA  
BAJA, SALINAS, GUAYANILLA, AGUADA, LOIZA, CATANO, VIEQUES,  
PATILLAS, FREDERIKSTED SOUTHEAST, COMERIO, FLORIDA, HORMIGUEROS,  
CHARLOTTE AMALIE WEST, SAN GERMAN, LUQUILLO, HATILLO, ISABELA,  
JUANA DIAZ, CAMUY, CIDRA, MAUNABO, FREDERIKSTED, FAJARDO,  
BAYAMON, GUAYNABO, CABO ROJO, PONCE, LAS PIEDRAS, CHARLOTTE  
AMALIE, ANASCO, GURABO, RINCON, NAGUABO, MANATI, CANOVANAS,  
GUAYAMA, ARROYO, CAGUAS, QUEBRADILLAS, AGUAS BUENAS, MAYAGUEZ,  
SAN JUAN, TOA ALTA, HUMACAO, SAN LORENZO, PENUELAS, GROVE PLACE,  
CHRISTIANSTED, CAYEY, YABUCOA, SANTA ISABEL, GUANICA, CHARLOTTE  
AMALIE EAST, YAUCO, VEGA ALTA, CULEBRA, DORADO, TRUJILLO ALTO,  
BARCELONETA, AND LAJAS  
219 PM AST THU OCT 30 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...ALL URBAN AND COASTAL AREAS OF PUERTO RICO, AS WELL AS THE  
EASTERN INTERIOR OF PUERTO RICO, VIEQUES, CULEBRA, AND THE U.S.  
VIRGIN ISLANDS.  
 
* 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.  
 
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.  
 
 
 
 
 
DSR  
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