661  
WWUS71 KPHI 200612  
NPWPHI  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
212 AM EDT FRI JUN 20 2025  
 
DEZ001-NJZ017>019-201915-  
/O.NEW.KPHI.XH.A.0001.250623T1200Z-250626T0000Z/  
NEW CASTLE-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-  
INCLUDING THE CITIES OF MOORESTOWN, MOUNT HOLLY, WILMINGTON,  
CHERRY HILL, GLASSBORO, AND CAMDEN  
212 AM EDT FRI JUN 20 2025  
 
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH  
WEDNESDAY EVENING...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 106  
POSSIBLE.  
 
* WHERE...IN DELAWARE, NEW CASTLE COUNTY. IN NEW JERSEY, CAMDEN,  
GLOUCESTER, AND NORTHWESTERN BURLINGTON COUNTIES.  
 
* WHEN...FROM MONDAY MORNING THROUGH WEDNESDAY EVENING.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT AND HIGH HUMIDITY EVENTS.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
 
 
 
 
NJZ001-007>010-012-015-201915-  
/O.NEW.KPHI.XH.A.0001.250623T1200Z-250626T0000Z/  
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-MERCER-  
INCLUDING THE CITIES OF WASHINGTON, FLEMINGTON, SOMERVILLE,  
MORRISTOWN, NEWTON, NEW BRUNSWICK, AND TRENTON  
212 AM EDT FRI JUN 20 2025  
 
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH  
WEDNESDAY EVENING...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 106  
POSSIBLE.  
 
* WHERE...MERCER, MIDDLESEX, MORRIS, SOMERSET, SUSSEX, WARREN, AND  
HUNTERDON COUNTIES.  
 
* WHEN...FROM MONDAY MORNING THROUGH WEDNESDAY EVENING.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT AND HIGH HUMIDITY EVENTS.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
 
 
 
 
PAZ060>062-070-071-101>106-201915-  
/O.NEW.KPHI.XH.A.0001.250623T1200Z-250626T0000Z/  
BERKS-LEHIGH-NORTHAMPTON-DELAWARE-PHILADELPHIA-WESTERN CHESTER-  
EASTERN CHESTER-WESTERN MONTGOMERY-EASTERN MONTGOMERY-UPPER BUCKS-  
LOWER BUCKS-  
INCLUDING THE CITIES OF HONEY BROOK, LANSDALE, ALLENTOWN,  
COLLEGEVILLE, POTTSTOWN, BETHLEHEM, EASTON, CHALFONT, WEST  
CHESTER, MORRISVILLE, OXFORD, DOYLESTOWN, READING, KENNETT  
SQUARE, PERKASIE, NORRISTOWN, PHILADELPHIA, AND MEDIA  
212 AM EDT FRI JUN 20 2025  
 
...EXTREME HEAT WATCH IN EFFECT FROM MONDAY MORNING THROUGH  
WEDNESDAY EVENING...  
 
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 107  
POSSIBLE.  
 
* WHERE...PORTIONS OF EAST CENTRAL AND SOUTHEAST PENNSYLVANIA.  
 
* WHEN...FROM MONDAY MORNING THROUGH WEDNESDAY EVENING.  
 
* IMPACTS...HEAT RELATED ILLNESSES INCREASE SIGNIFICANTLY DURING  
EXTREME HEAT AND HIGH HUMIDITY EVENTS.  
 
* ADDITIONAL DETAILS...LOW TEMPERATURES WILL HOVER NEAR 80 DEGREES  
IN URBAN AREAS. HEAT WILL HAVE A CUMULATIVE EFFECT ON THE BODY AS  
THE WEEK GOES ON AS LITTLE RELIEF WILL COME OVERNIGHT.  
 
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.  
 
DO NOT LEAVE YOUNG CHILDREN AND PETS IN UNATTENDED VEHICLES. CAR  
INTERIORS WILL REACH LETHAL TEMPERATURES IN A MATTER OF MINUTES.  
 
 
 
 
 
HOEFLICH  
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