* WHAT...Heat index values up to 110 degrees expected.
* WHERE...Portions of southeast Arkansas, northeast Louisiana, and central, north central, northwest, south central, southwest, and west central Mississippi.
* WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Sunday.
* IMPACTS...Hot temperatures and high humidity may cause heat related illnesses.