⚠️ Heat Advisory – Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Blaine; Beckham; Washita; Caddo; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Cotton; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer; Clay – Tuesday, August 18, 2026

Event	Heat Advisory
Severity	Moderate
Urgency	Expected
Certainty	Likely
Area	Harper; Woods; Alfalfa; Ellis; Woodward; Major; Roger Mills; Dewey; Custer; Blaine; Beckham; Washita; Caddo; Harmon; Greer; Kiowa; Jackson; Tillman; Comanche; Cotton; Hardeman; Foard; Wilbarger; Wichita; Knox; Baylor; Archer; Clay
Effective	8/18/2026, 11:32:00 AM CDT
Expires	8/19/2026, 10:00:00 AM CDT

Heat Advisory issued August 18 at 11:32AM CDT until August 19 at 8:00PM CDT by NWS Norman OK

* WHAT…For the first Heat Advisory, heat index values up to 106.
For the second Heat Advisory, heat index values up to 107 expected.

* WHERE…Portions of northwest, southwest, and western Oklahoma and
northern Texas.

* WHEN…For the first Heat Advisory, until 8 PM CDT this evening.
For the second Heat Advisory, from 11 AM to 8 PM CDT Wednesday.

* IMPACTS…Hot temperatures and high humidity may cause heat
illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.