595  
WWUS71 KPHI 170651  
NPWPHI  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
251 AM EDT THU JUL 17 2025  
 
DEZ001-NJZ012>015-017>020-026-027-PAZ070-071-104-106-172100-  
/O.CON.KPHI.HT.Y.0006.250717T1400Z-250718T0000Z/  
NEW CASTLE-MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-  
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-COASTAL OCEAN-  
SOUTHEASTERN BURLINGTON-DELAWARE-PHILADELPHIA-EASTERN MONTGOMERY-  
LOWER BUCKS-  
INCLUDING THE CITIES OF GLASSBORO, CHERRY HILL, LONG BEACH  
ISLAND, NEW BRUNSWICK, LANSDALE, MEDIA, MOORESTOWN, SANDY HOOK,  
FREEHOLD, WHARTON STATE FOREST, JACKSON, TRENTON, MOUNT HOLLY,  
DOYLESTOWN, CAMDEN, PHILADELPHIA, NORRISTOWN, WILMINGTON, AND  
MORRISVILLE  
251 AM EDT THU JUL 17 2025  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM  
EDT THIS EVENING...  
 
* WHAT...HEAT INDEX VALUES UP TO 104 DEGREES EXPECTED.  
 
* WHERE...PORTIONS OF NORTHERN DELAWARE, CENTRAL, NORTHERN, AND  
SOUTHERN NEW JERSEY, AND SOUTHEAST PENNSYLVANIA.  
 
* WHEN...FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING.  
 
* 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.  
 
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.  
 

 
 

 
 
DEZ002>004-MDZ012-015-019-020-NJZ016-021>025-172100-  
/O.CON.KPHI.HT.Y.0006.250717T1400Z-250718T0000Z/  
KENT-INLAND SUSSEX-DELAWARE BEACHES-KENT MD-QUEEN ANNES-TALBOT-  
CAROLINE-SALEM-CUMBERLAND-ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE  
MAY-COASTAL ATLANTIC-  
INCLUDING THE CITIES OF HAMMONTON, CENTREVILLE, OCEAN CITY,  
CHESTERTOWN, GEORGETOWN, CAPE MAY COURT HOUSE, DOVER, ATLANTIC  
CITY, REHOBOTH BEACH, PENNSVILLE, DENTON, MILLVILLE, AND EASTON  
251 AM EDT THU JUL 17 2025  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM  
EDT THIS EVENING...  
 
* WHAT...HEAT INDEX VALUES UP TO 106 DEGREES EXPECTED.  
 
* WHERE...PORTIONS OF CENTRAL AND SOUTHERN DELAWARE, NORTHEAST  
MARYLAND, AND SOUTHERN NEW JERSEY.  
 
* WHEN...FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING.  
 
* 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.  
 
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.  
 

 
 

 
 
NJZ001-007>010-PAZ060>062-101>103-105-172100-  
/O.CON.KPHI.HT.Y.0006.250717T1400Z-250718T0000Z/  
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-BERKS-LEHIGH-NORTHAMPTON-  
WESTERN CHESTER-EASTERN CHESTER-WESTERN MONTGOMERY-UPPER BUCKS-  
INCLUDING THE CITIES OF CHALFONT, WASHINGTON, MORRISTOWN,  
PERKASIE, HONEY BROOK, POTTSTOWN, BETHLEHEM, FLEMINGTON,  
ALLENTOWN, SOMERVILLE, READING, WEST CHESTER, NEWTON,  
COLLEGEVILLE, OXFORD, KENNETT SQUARE, AND EASTON  
251 AM EDT THU JUL 17 2025  
 
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM  
EDT THIS EVENING...  
 
* WHAT...HEAT INDEX VALUES UP TO 101 DEGREES EXPECTED.  
 
* WHERE...PORTIONS OF NORTHERN AND NORTHWEST NEW JERSEY AND EAST  
CENTRAL AND SOUTHEAST PENNSYLVANIA.  
 
* WHEN...FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING.  
 
* 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.  
 
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.  
 

 
 

 
 
DESILVA  
 
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