* WHAT...Heat index values in excess of 105 degrees expected.
* WHERE...Portions of northeast Louisiana and central, south central, southeast, and southwest Mississippi.
* WHEN...From 11 AM this morning to 7 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...These heat indices will occur near or just in advance of any midday to afternoon showers and thunderstorms.