* WHAT...For the first Heat Advisory, heat index values up to 107. For the second Heat Advisory, heat index values up to 108 expected.
* WHERE...Portions of north central and northeast Texas.
* WHEN...For today's Heat Advisory, until 8 PM CDT this evening. For Sunday's Heat Advisory, from noon to 8 PM CDT.
* IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities.