⚠️ Extreme Heat Warning – Canadian; Oklahoma; Grady; McClain; Cleveland; Pottawatomie; Seminole; Hughes; Stephens; Jefferson – Thursday, August 20, 2026

Extreme Heat Warning issued August 20 at 12:04PM CDT until August 21 at 9:00PM CDT by NWS Norman OK

Details

* WHAT…Dangerously hot conditions with heat index values up to 110
expected.

* WHERE…Canadian, Cleveland, Grady, McClain, Oklahoma,
Pottawatomie, Seminole, Hughes, Jefferson, and Stephens Counties.

* WHEN…Until 9 PM CDT Friday.

* IMPACTS…Heat related illnesses increase significantly during
extreme heat and high humidity events.

Instructions

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.