* WHAT...Expect heat index values of 105 to 110 Wednesday and Thursday. The hot temperatures and dangerous humidity values will be more intense across the area Thursday afternoon, where heat indices could possibly reach 112 across the Heartland and eastern Big Country. Also, very little cooling is expected Wednesday night with lows only in the mid 70s to lower 80s Thursday morning.
* WHERE...All of west central Texas.
* WHEN...Until 10 PM CDT Thursday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.