* WHAT. Dangerously hot conditions with heat index values up to 114 expected. * WHERE. Avoyelles, St. Landry, Lower St. Martin, Upper Iberia, and Upper St. Martin Parishes. * WHEN. From 11 AM this morning to 7 PM CDT this evening. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. Heat index values up to 111 expected. * WHERE. Portions of central, south central, southwest, and west central Louisiana and southeast Texas. * WHEN. From 11 AM this morning to 7 PM CDT this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 114 expected. For the Heat Advisory, heat index values up to 112 expected. * WHERE. Avoyelles, St. Landry, Lower St. Martin, Upper Iberia, and Upper St. Martin Parishes. * WHEN. For the Excessive Heat Warning, from 11 AM this morning to 7 PM CDT this evening. For the Heat Advisory, from 11 AM to 7 PM CDT Tuesday. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. For the first Heat Advisory, heat index values up to 111 expected. For the second Heat Advisory, heat index values up to 111 expected. * WHERE. Portions of central, south central, southwest, and west central Louisiana and southeast Texas. * WHEN. For the first Heat Advisory, from 11 AM this morning to 7 PM CDT this evening. For the second Heat Advisory, from 11 AM to 7 PM CDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. For the first Excessive Heat Warning, dangerously hot conditions with heat index values up to 114. For the second Excessive Heat Warning, dangerously hot conditions with heat index values up to 114 expected. * WHERE. Avoyelles, St. Landry, Lower St. Martin, Upper Iberia, and Upper St. Martin Parishes. * WHEN. For the first Excessive Heat Warning, until 7 PM CDT this evening. For the second Excessive Heat Warning, from 11 AM to 7 PM CDT Tuesday. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. For the Heat Advisory, heat index values up to 111. For the Excessive Heat Warning, dangerously hot conditions with heat index values up to 114 expected. * WHERE. In Louisiana, Rapides, Lafayette, Lower Iberia, Lower St. Mary, Upper St. Mary, and Vernon Parishes. In Texas, Northern Jasper, Northern Newton, and Tyler Counties. * WHEN. For the Heat Advisory, until 7 PM CDT this evening. For the Excessive Heat Warning, from 11 AM to 7 PM CDT Tuesday. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.

* WHAT. For the first Heat Advisory, heat index values up to 110. For the second Heat Advisory, heat index values up to 112 expected. * WHERE. Portions of central and southwest Louisiana and southeast Texas. * WHEN. For the first Heat Advisory, until 7 PM CDT this evening. For the second Heat Advisory, from 11 AM to 7 PM CDT Tuesday. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Dangerously hot conditions with heat index values up to 116 expected. * WHERE. Portions of southeast Louisiana and southern Mississippi. * WHEN. Until 7 PM CDT this evening and again Tuesday from 10 AM to 7 PM CDT. * IMPACTS. Heat related illnesses increase significantly during extreme heat and high humidity events.