* WHAT...For the first Heat Advisory, heat index values up to 107. For the second Heat Advisory, heat index values up to 107 expected.
* WHERE...In Oklahoma, Comanche, Cotton, Jackson, and Tillman Counties. In Texas, Archer, Baylor, Clay, Wichita, and Wilbarger Counties.
* WHEN...For the first Heat Advisory, until 8 PM CDT this evening. For the second Heat Advisory, from 11 AM to 8 PM CDT Tuesday.
* IMPACTS...Hot temperatures and high humidity may cause heat illnesses.