Heat Advisory

* WHAT...For the first Heat Advisory, heat index values up to 100. For the second Heat Advisory, heat index values up to 101 expected. For the third Heat Advisory, heat index values up to 102 expected.

* WHERE...In Maryland, Extreme Western Allegany County. In West Virginia, Eastern Pendleton and Western Mineral Counties.

* WHEN...For the first Heat Advisory, until 8 PM EDT this evening. For the second Heat Advisory, from 10 AM to 8 PM EDT Thursday. For the third Heat Advisory, from 10 AM to 8 PM EDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.