* WHAT...Prolonged dangerous hot conditions are likely. Heat index
values ranging from 105 to 110 degrees are expected. Little relief
will be observed at night with temperatures ranging from 70 to 75
degrees.
* WHERE...Beaver, Fayette, Washington, Allegheny, Butler, and
Westmoreland Counties.
* WHEN...Until 8 PM EDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.