* WHAT...Heat index values from the afternoon into the early evening each day will range from 98 to 105 degrees. Impacts will continue with warm and muggy conditions each night, with minimum temperatures in the lower to mid 70s.
* WHERE...Portions of east central Ohio, northwest, southwest, and western Pennsylvania, and northern and the northern panhandle of West Virginia.
* WHEN...From 11 AM Tuesday to 10 PM EDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.