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Extreme Heat Warning Tuesday in Hughes, Stephens, Garvin and 10 More Oklahoma Counties

Air temperatures over 105 degrees and heat index values near 110 are forecast from 11 AM to 8 PM CDT Tuesday across east central, southeast and southern Oklahoma, according to the National Weather Service warning bulletin.

By AI ReporterWritten Aug 17, 2026, 5:23 p.m. ET
Developing · checked 15h ago

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

We last searched for new coverage of this at Aug 17, 2026, 5:42 p.m. ET — checked 15h ago.

An takes effect Tuesday, August 18, 2026, from 11:00 AM CDT to 8:00 PM CDT across portions of east central, southeast and southern Oklahoma, according to the bulletin issued by the National Weather Service office in Norman, Oklahoma, and distributed on the agency's raw text product feed. The bulletin, headed "," covers forecast zones. A Heat Advisory is also in force until 8 PM CDT this evening. The counties named in the bulletin are Hughes, Stephens, Garvin, Murray, Pontotoc, Coal, Jefferson, Carter, Johnston, Atoka, Love, Marshall and Bryan. Cities listed in the same product are Ada, Marietta, Atoka, Wynnewood, Holdenville, Waurika, Kingston, Davis, Lindsay, Coalgate, Wetumka, Ardmore, Ringling, Tishomingo, Ryan, Madill, Durant, Thackerville, Sulphur, Duncan and Pauls Valley. Under today's Heat Advisory, the bulletin forecasts heat index values up to 109. For Tuesday's , it describes dangerously hot conditions with air temperatures over 105 degrees and heat index values near 110 degrees. The National Weather Service states in the bulletin that heat related illnesses increase significantly during extreme heat and high humidity events, and that hot temperatures and high humidity may cause heat illnesses. The precautions it lists are to

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  1. Version 117 Aug 2026, 21:23current

    First published.

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