130
WWUS74 KTSA 181645
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1145 AM CDT Tue Aug 18 2026

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

...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.

&&

$$

ARZ001-002-010-011-119-120-OKZ058-063-068-069-172-190600-
/O.CON.KTSA.HT.Y.0039.260818T1800Z-260820T0200Z/
Benton-Carroll-Washington AR-Madison-Northern Crawford-Northern
Franklin-Ottawa-Delaware-Cherokee-Adair-Northern Sequoyah-
Including the cities of Bentonville, Miami, Jay, Stilwell,
Mountainburg, Huntsville, Barnes, Paradise, Eureka Springs, Grove,
Springdale, Rogers, Marble City, Fayetteville, Tahlequah, and
Berryville
1145 AM CDT Tue Aug 18 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT WEDNESDAY...

* WHAT...Heat index values up to 108 expected.

* WHERE...Portions of northwest and west central Arkansas and east
  central and northeast Oklahoma.

* WHEN...Until 9 PM CDT Wednesday.

* IMPACTS...Heat related illnesses are possible especially impacting
  those not acclimated to the conditions or those performing
  strenuous activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$