606  
WWCA72 TJSJ 010745  
NPWSJU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN JUAN PR  
345 AM AST SUN JUN 1 2025  
 
PRZ001-003-005-007-008-010-011-012100-  
/O.NEW.TJSJ.HT.Y.0005.250601T1400Z-250601T2100Z/  
SAN JUAN AND VICINITY-SOUTHEAST-NORTH CENTRAL-PONCE AND VICINITY-  
NORTHWEST-MAYAGUEZ AND VICINITY-SOUTHWEST-  
INCLUDING THE CITIES OF PATILLAS, GUAYAMA, TOA ALTA, YABUCOA,  
YAUCO, HATILLO, ANASCO, GUANICA, GUAYNABO, TOA BAJA, ISABELA,  
ARECIBO, DORADO, BARCELONETA, SAN JUAN, CATANO, ARROYO, SAN  
GERMAN, MAYAGUEZ, VEGA ALTA, MOCA, SALINAS, AGUADILLA, TRUJILLO  
ALTO, CAMUY, CABO ROJO, AGUADA, MANATI, RINCON, QUEBRADILLAS,  
CAROLINA, FLORIDA, BAYAMON, VEGA BAJA, SANTA ISABEL, HORMIGUEROS,  
GUAYANILLA, PENUELAS, MAUNABO, LAJAS, PONCE, AND JUANA DIAZ  
345 AM AST SUN JUN 1 2025  
 
...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 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. THOSE EXTREMELY SENSITIVE TO HEAT FACE THE HIGHEST  
RISK. SOME HEALTH SYSTEMS AND HEAT-SENSITIVE INDUSTRIES COULD BE  
AFFECTED. THESE CONDITIONS ARE MOST LIKELY ACROSS THE URBAN AND  
COASTAL AREAS.  
 
* WHERE...MAYAGUEZ AND VICINITY, NORTH CENTRAL, NORTHWEST, PONCE AND  
VICINITY, SAN JUAN AND VICINITY, SOUTHEAST, AND SOUTHWEST COUNTIES.  
 
* 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.  
 
MONITOR THE LATEST FORECASTS AND WARNINGS FOR UPDATES.  
 
 
 
 
 
CAM  
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