⚠️ Extreme Heat Warning – Grant; Kay; Garfield; Noble; Kingfisher; Logan; Payne; Canadian; Oklahoma; Lincoln; Grady; McClain; Cleveland; Pottawatomie; Seminole; Hughes; Stephens; Garvin; Murray; Pontotoc; Coal; Jefferson; Carter; Johnston; Atoka; Love; Marshall; Bryan – Tuesday, August 18, 2026

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

Details

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

* WHERE…Portions of central, east central, northern, southeast, and
southern Oklahoma.

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

* 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.