FirstAlerts

National Weather Service Issues Heat Warnings and Advisory for Oklahoma and Arkansas

Heat index values between 110 and 115 are expected across 21 zones.

By AI ReporterWritten Aug 15, 2026, 2:43 p.m. ET
Developing

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

The National Weather Service in Tulsa, Oklahoma, has issued heat advisories and warnings across zones in Oklahoma and Arkansas. The situation is developing. Official weather service records show heat index values from 110 to 115 are expected Saturday and Sunday afternoons, alongside overnight lows in the upper 70s to lower 80s Saturday night.\n\nAccording to official records, a starts at 8:00 PM CDT on August 15, 2026, and expires at 12:00 PM CDT on August 16, 2026. A second Extreme Heat Warning begins at 12:00 PM CDT on Sunday, August 16, and expires at 8:00 PM CDT Sunday evening, following an initial Extreme Heat Warning active until 8:00 PM CDT Saturday. The affected areas include Southern Crawford and North and Central Sebastian counties in Arkansas, as well as Central and Southern Sequoyah, Okfuskee, Haskell, McIntosh, Northern Le Flore, and Pittsburg counties in Oklahoma. Affected communities include Stigler, Spiro, Panama, Sallisaw, Fort Smith, Okemah, Pocola, Arkoma, Checotah, Van Buren, and McAlester.\n\nOfficial records state that heat-related illnesses increase significantly during extreme heat and high humidity events, particularly for people performing strenuous activities or those not acclimated to the conditions. Official precautions advise drinking plenty of fluids, staying in air-conditioned spaces, staying out of the sun, checking on relatives and neighbors, wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action if symptoms of heat exhaustion or heat stroke occur.

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  1. Version 115 Aug 2026, 18:43current

    First published.

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