555  
WWCA72 TJSJ 120825  
NPWSJU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN JUAN PR  
425 AM AST TUE AUG 12 2025  
 
PRZ001>005-007-008-010>013-VIZ001-002-121630-  
/O.NEW.TJSJ.HT.Y.0036.250812T1400Z-250812T2100Z/  
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 HUMACAO, CAYEY, BAYAMON, JUNCOS,  
BARCELONETA, TOA BAJA, JUANA DIAZ, LAS PIEDRAS, MAUNABO, MANATI,  
CRUZ BAY, GUAYAMA, GURABO, GUAYANILLA, ANASCO, VEGA BAJA,  
PENUELAS, GUANICA, CIDRA, GUAYNABO, TRUJILLO ALTO, CANOVANAS,  
QUEBRADILLAS, MOCA, CEIBA, LUQUILLO, RIO GRANDE, HORMIGUEROS,  
RINCON, CHARLOTTE AMALIE WEST, ARROYO, FREDERIKSTED, LOIZA,  
FLORIDA, ISABELA, PONCE, CHARLOTTE AMALIE EAST, CATANO, YABUCOA,  
TOA ALTA, PATILLAS, VEGA ALTA, AGUAS BUENAS, SAN GERMAN, YAUCO,  
SAN JUAN, FAJARDO, AGUADILLA, AGUADA, VIEQUES, CULEBRA, ANNA'S  
RETREAT, SANTA ISABEL, HATILLO, NAGUABO, SAN LORENZO, LAJAS,  
CHRISTIANSTED, CAMUY, GROVE PLACE, CHARLOTTE AMALIE, CABO ROJO,  
FREDERIKSTED SOUTHEAST, CAGUAS, COMERIO, SALINAS, DORADO,  
ARECIBO, CAROLINA, AND MAYAGUEZ  
425 AM AST TUE AUG 12 2025  
 
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 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...PORTIONS OF PUERTO RICO AND VIRGIN ISLANDS.  
 
* WHEN...FROM 10 AM THIS MORNING TO 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.  
 
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.  
 

 
 

 
 
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