* WHAT...Heat index values up to 104 expected.
* WHERE...Portions of western Maryland, northwest and western
Virginia and eastern and panhandle West Virginia.
* WHEN...Until 8 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses to occur.
* ADDITIONAL DETAILS...Oppressive heat and humidity will
overspread the area through Sunday before a cold front tracks
through early Monday. Little relief from the heat is expected
tonight with low temperatures in the low to mid 70s, which will
compound heat stress on those without air conditioning.