794
WWUS71 KPHI 201753
NPWPHI
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
153 PM EDT WED MAY 20 2026
DEZ001-NJZ015-017>019-PAZ070-071-102-104-106-210000-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
NEW CASTLE-MERCER-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
DELAWARE-PHILADELPHIA-EASTERN CHESTER-EASTERN MONTGOMERY-LOWER
BUCKS-
INCLUDING THE CITIES OF TRENTON, CHERRY HILL, CAMDEN, GLASSBORO,
MOUNT HOLLY, WEST CHESTER, MOORESTOWN, MEDIA, KENNETT SQUARE,
NORRISTOWN, MORRISVILLE, LANSDALE, WILMINGTON, PHILADELPHIA, AND
DOYLESTOWN
153 PM EDT WED MAY 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 98 DEGREES EXPECTED.
* WHERE...IN DELAWARE, NEW CASTLE COUNTY. IN NEW JERSEY, MERCER,
CAMDEN, GLOUCESTER, AND NORTHWESTERN BURLINGTON COUNTIES. IN
PENNSYLVANIA, DELAWARE, EASTERN CHESTER, EASTERN MONTGOMERY, LOWER
BUCKS, AND PHILADELPHIA COUNTIES.
* WHEN...UNTIL 8 PM EDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...SHOWERS AND THUNDERSTORMS ARRIVE LATE THIS
AFTERNOON AND THIS EVENING WHICH WILL END THIS EARLY SEASON HEAT.
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.
NJZ007>010-PAZ060>062-101-103-105-210000-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
WARREN-MORRIS-HUNTERDON-SOMERSET-BERKS-LEHIGH-NORTHAMPTON-WESTERN
CHESTER-WESTERN MONTGOMERY-UPPER BUCKS-
INCLUDING THE CITIES OF READING, PERKASIE, MORRISTOWN,
WASHINGTON, CHALFONT, FLEMINGTON, EASTON, BETHLEHEM, OXFORD,
POTTSTOWN, ALLENTOWN, SOMERVILLE, HONEY BROOK, AND COLLEGEVILLE
153 PM EDT WED MAY 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 96 DEGREES EXPECTED.
* WHERE...IN NEW JERSEY, MORRIS, SOMERSET, WARREN, AND HUNTERDON
COUNTIES. IN PENNSYLVANIA, BERKS, LEHIGH, NORTHAMPTON, UPPER
BUCKS, WESTERN CHESTER, AND WESTERN MONTGOMERY COUNTIES.
* WHEN...UNTIL 8 PM EDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...SHOWERS AND THUNDERSTORMS ARRIVE INTO THIS
EVENING WHICH WILL END THIS EARLY SEASON HEAT.
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.
NJZ012-013-020-027-210000-
/O.CON.KPHI.HT.Y.0001.000000T0000Z-260521T0000Z/
MIDDLESEX-WESTERN MONMOUTH-OCEAN-SOUTHEASTERN BURLINGTON-
INCLUDING THE CITIES OF FREEHOLD, JACKSON, NEW BRUNSWICK, AND
WHARTON STATE FOREST
153 PM EDT WED MAY 20 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 98 DEGREES EXPECTED.
* WHERE...WESTERN MONMOUTH, MIDDLESEX, OCEAN, AND SOUTHEASTERN
BURLINGTON COUNTIES.
* WHEN...UNTIL 8 PM EDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
* ADDITIONAL DETAILS...SHOWERS AND THUNDERSTORMS ARRIVE THIS EVENING
WHICH WILL END THIS EARLY SEASON HEAT.
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.
GORSE
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