* WHAT...For the first Heat Advisory, heat index values up to 111. For the second Heat Advisory, heat index values up to 112 expected, as well as temperatures up to 100 to 103.
* WHERE...Portions of south central and southwest Louisiana and southeast Texas.
* WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 10 AM to 8 PM CDT Friday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.