Extreme Heat Warning
Status
Event Continued Active alertStart Time
Tue 08/18/2026 02:00 PM EDTEnd Time
Wed 08/19/2026 10:00 PM EDTSignificance
WarningImpacts
High impact
Locations Affected
Tulsa, OK ∙ Broken Arrow, OK ∙ Fort Smith, AR ∙ Blackburn, OK ∙ Dewar, OK ∙ Summit, OK ∙ Redbird Smith, OK ∙ Ochelata, OK ∙ Tiawah, OK ∙ Pensacola, OKFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Tulsa OK 1145 AM CDT Tue Aug 18 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT WEDNESDAY... * WHAT...Dangerously hot conditions with heat index values up to 112 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...Until 9 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Technical Header
ARZ129-219-220-229-OKZ049-053-055>057-059>062-064>067-070-071- 073>075-154-176-254-272-276-354-376-190600- /O.CON.KTSA.XH.W.0015.260818T1800Z-260820T0200Z/ North and Central Sebastian-Southern Crawford-Central and Southern Franklin-Southern Sebastian-Pushmataha-Choctaw- Washington OK-Nowata-Craig-Pawnee-Tulsa-Rogers-Mayes-Creek- Okfuskee-Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg-Haskell- Latimer-Western Osage-Northern Le Flore-Northeast Osage- Central and Southern Sequoyah-Central Le Flore-Southeast Osage- Southern Le Flore- Including the cities of Hugo, Pawnee, Clayton, Watalula, Patterson, Vinita, Fairfax, Talihina, Arkoma, Spiro, Hartford, Liberty, Panama, Fort Smith, Pryor, Ozark, Hominy, Mansfield, Pawhuska, Tulsa, Pocola, Wagoner, Poteau, Antlers, Wilburton, Charleston, Van Buren, McAlester, Cravens, Okemah, Shidler, Sallisaw, Sapulpa, Lonelm, Claremore, Huntington, Stigler, Okmulgee, Cecil, Bartlesville, Nowata, Checotah, Muskogee, and Jethro 1145 AM CDT Tue Aug 18 2026
