* WHAT...Heat index values up to 112 expected.
* WHERE...Portions of the Big Bend and Panhandle of Florida.
* WHEN...From 11 AM EDT /10 AM CDT/ to 8 PM EDT /7 PM CDT/ Wednesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
* ADDITIONAL DETAILS...While a heat advisory is in effect for Wednesday, there is a 30 to 50 percent chance that heat indices will exceed 113 across portions of the Florida Panhandle and Big Bend.