New Jersey, Pennsylvania Heat Advisory | Effective 05/19/2026 11:25
* WHAT...Heat index values up to 97 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 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 around 95 degrees Wednesday.