National Weather Service Issues Heat Advisory for Parts of Arkansas and Oklahoma
A Heat Advisory is scheduled from 11 AM to 8 PM CDT on Monday, August 17, 2026, with heat index values reaching up to 109.
3 reports on this incident · first at Aug 17, 2026, 12:52 a.m. ET
Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.
Earlier reports
Aug 17, 2026, 1:24 a.m. ET
Heat Advisory to Begin 11 AM Monday for 18 Zones in Arkansas and Oklahoma
A Heat Advisory is scheduled to take effect at 11 AM CDT Monday, August 17, 2026, and to run until 8 PM CDT the same day, according to the alert record issued by the National Weather Service Tulsa OK and posted to the agency's raw product feed. The advisory has not started yet — it begins late Monday morning and covers the nine hours that follow. Heat index values up to 109 are expected.
The advisory will cover 18 zones across portions of northwest and west central Arkansas and east central and southeast Oklahoma. The record names them as: Northern Crawford, Northern Franklin, North and Central Sebastian, Southern Crawford, Central and Southern Franklin, Southern Sebastian, Pushmataha, Choctaw, Muskogee, McIntosh, Pittsburg, Haskell, Latimer, Northern Sequoyah, Northern Le Flore, Central and Southern Sequoyah, Central Le Flore and Southern Le Flore.
Communities listed in the same record include Sallisaw, Mountainburg, Paradise, Muskogee, Poteau, Ozark, Huntington, Charleston, Jethro, Clayton, Antlers, Cecil, McAlester, Hugo, Talihina, Patterson, Panama, Fort Smith, Marble City, Barnes, Van Buren, Stigler, Checotah, Liberty and Pocola.
Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities, the record states.
For the advisory period, the National Weather Service Tulsa OK advises taking extra precautions when outside, wearing lightweight and loose fitting clothing, trying to limit strenuous activities to early morning or evening, and taking action when you see symptoms of heat exhaustion and heat stroke.
Until 11 AM CDT Monday, August 17, 2026, this is a scheduled alert rather than an active one. The record's own headline reads: HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT MONDAY. Readers checking after 8 PM CDT Monday, August 17, should treat the advisory as expired unless the National Weather Service Tulsa OK issues a new one.
Aug 17, 2026, 12:52 a.m. ETFirst report
Heat Advisory Issued for Parts of Arkansas and Oklahoma
A heat advisory is in effect on Monday, August 17, 2026, starting at 11:00 AM CDT and expiring at 8:00 PM CDT, according to official records from the National Weather Service Tulsa OK. The advisory covers portions of northwest and west central Arkansas, as well as east central and southeast Oklahoma across 18 zones. This is a developing situation.
Heat index values up to 109 are expected, according to official records. Affected cities include Sallisaw, Mountainburg, Paradise, Muskogee, Poteau, Ozark, Huntington, Charleston, Jethro, Clayton, Antlers, Cecil, McAlester, Hugo, Talihina, Patterson, Panama, Fort Smith, Marble City, Barnes, Van Buren, Stigler, Checotah, Liberty, and Pocola. The record lists the affected areas as Northern Crawford, Northern Franklin, North and Central Sebastian, Southern Crawford, Central and Southern Franklin, Southern Sebastian, Pushmataha, Choctaw, Muskogee, McIntosh, Pittsburg, Haskell, Latimer, Northern Sequoyah, Northern Le Flore, Central and Southern Sequoyah, Central Le Flore, and Southern Le Flore.
Official records indicate that heat-related illnesses are possible, particularly impacting those performing strenuous activities or those not acclimated to the conditions. Precautions listed in the record advise taking extra precautions when outside, wearing lightweight and loose-fitting clothing, limiting strenuous activities to early morning or evening, and taking action when seeing symptoms of heat exhaustion and heat stroke.
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Revision history
- Version 117 Aug 2026, 05:24current
First published.
- Version 117 Aug 2026, 04:52current
First published.
- Version 117 Aug 2026, 05:25current
First published.
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