* WHAT...Dangerously hot conditions with heat index values up to 110.
* WHERE...In Oklahoma, Beaver and Texas Counties. In Texas, Hansford, Hemphill, Hutchinson, Lipscomb, Moore, Ochiltree, Roberts, and Sherman Counties.
* WHEN...Until 10 PM CDT this evening.
* IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.