143  
WWCA72 TJSJ 110757  
NPWSJU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN JUAN PR  
357 AM AST MON AUG 11 2025  
 
PRZ001>005-007-008-010-011-111600-  
/O.NEW.TJSJ.HT.Y.0035.250811T1400Z-250811T2100Z/  
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-NORTH  
CENTRAL-PONCE AND VICINITY-NORTHWEST-MAYAGUEZ AND VICINITY-  
SOUTHWEST-  
INCLUDING THE CITIES OF TOA ALTA, ISABELA, MAYAGUEZ, LAJAS, VEGA  
BAJA, CAMUY, ARROYO, FLORIDA, MOCA, MANATI, COMERIO, CAROLINA,  
CATANO, AGUADA, YAUCO, TRUJILLO ALTO, RINCON, SAN GERMAN, VEGA  
ALTA, BAYAMON, RIO GRANDE, ARECIBO, DORADO, BARCELONETA, PONCE,  
HORMIGUEROS, MAUNABO, SAN JUAN, CIDRA, JUNCOS, CAYEY, CAGUAS,  
AGUAS BUENAS, ANASCO, GUAYNABO, SANTA ISABEL, GUAYAMA, GURABO,  
SALINAS, CEIBA, LAS PIEDRAS, PATILLAS, TOA BAJA, QUEBRADILLAS,  
HUMACAO, FAJARDO, NAGUABO, PENUELAS, SAN LORENZO, GUANICA,  
GUAYANILLA, CABO ROJO, JUANA DIAZ, LUQUILLO, AGUADILLA,  
CANOVANAS, HATILLO, YABUCOA, AND LOIZA  
357 AM AST MON AUG 11 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...ALL COASTAL AND URBAN AREAS IN PUERTO RICO.  
 
* 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.  
 
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.  
 
 
 
 
 
YZR  
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