* WHAT. Heat index values up to 114. * WHERE. Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, and Inland Willacy Counties. * WHEN. Until 7 PM CDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. For the Heat Advisory, heat index values up to 93. For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 117 expected. * WHERE. Brooks, Inland Kenedy, Jim Hogg, Northern Hidalgo, Southern Hidalgo, Starr, and Zapata Counties. * WHEN. For the Heat Advisory, until 10 AM CDT this morning. For the Excessive Heat Warning, until 7 PM CDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.