* 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...Portions of central, southeast, southwest, and western Arkansas.
* WHEN...For the first Heat Advisory, until 7 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.