Sent: May 20 at 03:27 AM EDT

Expires: May 20 at 08:00 PM EDT

Event: Heat Advisory

Description:

* WHAT...Heat index values up to 97 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...Maximum heat indices near 100 degrees during peak heating this afternoon. 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 this afternoon and evening which will end this early season heat.

Target Area:

  • New Castle
  • Mercer
  • Gloucester
  • Camden
  • Northwestern Burlington
  • Delaware
  • Philadelphia
  • Eastern Chester
  • Eastern Montgomery
  • Lower Bucks