NWS Forecast Office Tulsa, OK

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Last Map Update: Mon, Aug 24, 2026 at 10:26:45 pm CDT

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Heat Advisory Tuesday

Dangerous Heat Persists

Severe Weather Outlook Wednesday

Forecast Summary

Dangerous heat will continue for portions of eastern Oklahoma and west-central Arkansas Tuesday, with heat index values ranging between 105-109 F. The Heat Advisory will go into effect at noon and will run through 8 PM Tuesday.

High heat stress conditions will continue to impact outdoor activities through mid week and again for the weekend.

Isolated thunderstorms are possible Wednesday afternoon and into the evening, with a marginal risk for severe weather primarily across western Arkansas. Locally damaging winds to 70 mph will be the main threat, with marginally severe hail possible as well.

Temperatures mostly above normal with continued periods of locally high heat stress to continue through the week. The possible exception being around active thunderstorm activity. Low thunderstorm chances Monday. Areas of localized fire weather concerns will persist until widespread beneficial rainfall occurs.

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