* WHAT...For both Heat Advisories, heat indices around 100 degrees expected.
* WHERE...In Maryland, Extreme Western Allegany County. In West Virginia, Eastern Pendleton and Western Mineral Counties.
* WHEN...For the first Heat Advisory, from 10 AM to 8 PM EDT Thursday. For the second Heat Advisory, from 10 AM to 8 PM EDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.