Headline:
Heat Advisory issued May 19 at 2:25PM EDT until May 20 at 8:00PM EDT by NWS Mount Holly NJ
Event:
Heat Advisory
Urgency:
Expected
Effective:
May 19, 2026 - 11:25am
Expires:
May 20, 2026 - 2:00am
Description:
* WHAT...Heat index values up to 99 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 Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...Maximum heat indices near 100 degrees during
peak heating this afternoon and then again on Wednesday. Given the
intensity of this early season stretch of heat and humidity, we
are not fully acclimated to it and therefore impacts could be
greater if precautions are not taken. Showers and some
thunderstorms arrive later Wednesday afternoon and evening which
will end this early season heat.
Instruction:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Area Description:
New Castle; Mercer; Gloucester; Camden; Northwestern Burlington; Delaware; Philadelphia; Eastern Chester; Eastern Montgomery; Lower Bucks
Forcast Office:
NWS Mount Holly NJ
Sender: