Extreme Heat Warning

* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 113. For the Heat Advisory, heat index values up to 110 expected.

* WHERE...Lincoln, Payne, Atoka, Bryan, Coal, and Hughes Counties.

* WHEN...For the Extreme Heat Warning, until 9 PM CDT this evening. For the Heat Advisory, from noon to 9 PM CDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.