246  
WWUS71 KPHI 171838  
NPWPHI  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
238 PM EDT TUE JUN 17 2025  
 
DEZ001-NJZ017>019-PAZ070-071-180830-  
/O.EXT.KPHI.HT.Y.0001.250618T1500Z-250620T0000Z/  
NEW CASTLE-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-  
PHILADELPHIA-  
INCLUDING THE CITIES OF MEDIA, PHILADELPHIA, WILMINGTON, CHERRY  
HILL, GLASSBORO, MOORESTOWN, CAMDEN, AND MOUNT HOLLY  
238 PM EDT TUE JUN 17 2025  
 
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM WEDNESDAY TO 8 PM EDT  
THURSDAY...  
 
* WHAT...HEAT INDEX VALUES UP TO 98 EXPECTED.  
 
* WHERE...IN DELAWARE, NEW CASTLE COUNTY. IN NEW JERSEY, CAMDEN,  
GLOUCESTER, AND NORTHWESTERN BURLINGTON COUNTIES. IN PENNSYLVANIA,  
DELAWARE AND PHILADELPHIA COUNTIES.  
 
* WHEN...FROM 11 AM WEDNESDAY TO 8 PM EDT THURSDAY.  
 
* 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.  
 

 
 

 
 
NJZ015-PAZ104-106-180830-  
/O.CON.KPHI.HT.Y.0001.250619T1500Z-250620T0000Z/  
MERCER-EASTERN MONTGOMERY-LOWER BUCKS-  
INCLUDING THE CITIES OF MORRISVILLE, NORRISTOWN, DOYLESTOWN,  
TRENTON, AND LANSDALE  
238 PM EDT TUE JUN 17 2025  
   
..HEAT ADVISORY REMAINS IN EFFECT FROM 11 AM TO 8 PM EDT THURSDAY
 
 
* WHAT...HEAT INDEX VALUES UP TO 97 EXPECTED.  
 
* WHERE...IN NEW JERSEY, MERCER COUNTY. IN PENNSYLVANIA, EASTERN  
MONTGOMERY AND LOWER BUCKS COUNTIES.  
 
* WHEN...FROM 11 AM TO 8 PM EDT THURSDAY.  
 
* 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.  
 

 
 

 
 
DESILVA  
 
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