221  
WWCA72 TJSJ 251607  
NPWSJU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1207 PM AST SAT JUL 25 2026  
 
PRZ001>005-007-008-010-011-252000-  
/O.NEW.TJSJ.HT.Y.0019.260725T1607Z-260725T2000Z/  
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-NORTH  
CENTRAL-PONCE AND VICINITY-NORTHWEST-MAYAGUEZ AND VICINITY-  
SOUTHWEST-  
INCLUDING THE CITIES OF MANATI, CANOVANAS, JUNCOS, GURABO, CEIBA,  
SANTA ISABEL, MAUNABO, HATILLO, COMERIO, LOIZA, FAJARDO, ARECIBO, TOA  
BAJA, CIDRA, FLORIDA, LAJAS, CATANO, HUMACAO, NAGUABO, CAYEY, JUANA  
DIAZ, QUEBRADILLAS, BARCELONETA, MAYAGUEZ, YABUCOA, RINCON,  
HORMIGUEROS, TRUJILLO ALTO, LAS PIEDRAS, YAUCO, TOA ALTA, SALINAS,  
SAN GERMAN, LUQUILLO, CAGUAS, DORADO, CAROLINA, ARROYO, GUAYAMA,  
GUAYANILLA, VEGA BAJA, CAMUY, SAN JUAN, CABO ROJO, ANASCO, AGUADA,  
BAYAMON, AGUAS BUENAS, VEGA ALTA, PENUELAS, ISABELA, GUANICA, RIO  
GRANDE, MOCA, GUAYNABO, SAN LORENZO, AGUADILLA, PATILLAS, AND PONCE  
1207 PM AST SAT JUL 25 2026  
   
..HEAT ADVISORY IN EFFECT UNTIL 4 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...EASTERN INTERIOR, MAYAGUEZ AND VICINITY, NORTH CENTRAL,  
NORTHEAST, NORTHWEST, PONCE AND VICINITY, SAN JUAN AND VICINITY,  
SOUTHEAST, AND SOUTHWEST COUNTIES.  
 
* WHEN...UNTIL 4 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.  
 
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.  
 

 
 

 
 
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