463 
WWUS74 KTSA 160431
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1131 PM CDT Sat Aug 15 2026

ARZ129-219-OKZ055>058-060>067-070-071-073-074-176-272-354-161645-
/O.CON.KTSA.XH.W.0014.260816T1700Z-260817T0100Z/
/O.CON.KTSA.HT.Y.0037.000000T0000Z-260816T1700Z/
North and Central Sebastian-Southern Crawford-Washington OK-
Nowata-Craig-Ottawa-Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-
Okmulgee-Wagoner-Muskogee-McIntosh-Pittsburg-Haskell-
Northern Le Flore-Central and Southern Sequoyah-Southeast Osage-
Including the cities of Tulsa, Sapulpa, Spiro, Vinita, Arkoma,
Checotah, Fort Smith, Pryor, Jay, Stigler, Bartlesville, Wagoner,
Okmulgee, Okemah, Sallisaw, Van Buren, Muskogee, McAlester, Grove,
Panama, Claremore, Hominy, Miami, Pocola, and Nowata
1131 PM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT
SUNDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT SUNDAY...

* WHAT...For the Heat Advisory, heat index values up to 105 expected.
  For the Extreme Heat Warning, dangerously hot conditions with heat
  index values of 110 to 115 expected.

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

* WHEN...For the Heat Advisory, until noon CDT Sunday. For the
  Extreme Heat Warning, from noon to 8 PM CDT Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Heat related illnesses are
  possible especially impacting those not acclimated to the
  conditions or those performing strenuous activities.

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.

&&

$$

ARZ220-161645-
/O.CON.KTSA.XH.W.0014.260816T1700Z-260817T0100Z/
/O.CON.KTSA.HT.Y.0035.000000T0000Z-260816T1700Z/
Central and Southern Franklin-
Including the cities of Cecil, Charleston, Watalula, Ozark, Jethro,
Lonelm, and Cravens
1131 PM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM NOON TO 8 PM CDT
SUNDAY...
...HEAT ADVISORY REMAINS IN EFFECT UNTIL NOON CDT SUNDAY...

* WHAT...For the Heat Advisory, heat index values up to 106. For the
  Extreme Heat Warning, dangerously hot conditions with heat index
  values of 110 to 115 expected.

* WHERE...Central and Southern Franklin County.

* WHEN...For the Heat Advisory, until noon CDT Sunday. For the
  Extreme Heat Warning, from noon to 8 PM CDT Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Heat related illnesses are
  possible especially impacting those not acclimated to the
  conditions or those performing strenuous activities.

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.

&&

$$

ARZ001-002-010-011-119-120-229-OKZ049-053-068-069-075-172-276-376-
161645-
/O.CON.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
Benton-Carroll-Washington AR-Madison-Northern Crawford-Northern
Franklin-Southern Sebastian-Pushmataha-Choctaw-Cherokee-Adair-
Latimer-Northern Sequoyah-Central Le Flore-Southern Le Flore-
Including the cities of Fayetteville, Berryville, Liberty, Hartford,
Huntington, Stilwell, Barnes, Huntsville, Patterson, Clayton, Hugo,
Poteau, Talihina, Antlers, Eureka Springs, Mansfield, Bentonville,
Marble City, Springdale, Rogers, Mountainburg, Wilburton, Tahlequah,
and Paradise
1131 PM CDT Sat Aug 15 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SUNDAY...

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

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

* WHEN...Until 8 PM CDT Sunday.

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

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.

&&

$$

OKZ059-154-254-161645-
/O.CON.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
Pawnee-Western Osage-Northeast Osage-
Including the cities of Pawhuska, Shidler, Pawnee, and Fairfax
1131 PM CDT Sat Aug 15 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SUNDAY...

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

* WHERE...Northeast Osage, Pawnee, and Western Osage Counties.

* WHEN...Until 8 PM CDT Sunday.

* 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.

&&

$$

MAB


File: /home/ldm/var/data/BY_SOURCE/KTSA/WWUS74/20260816T0431.txt



467 
WWUS74 KTSA 151626
NPWTSA

URGENT - WEATHER MESSAGE
National Weather Service Tulsa OK
1126 AM CDT Sat Aug 15 2026

ARZ129-219-OKZ065-071-073-074-176-272-160600-
/O.UPG.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0014.260816T1700Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0013.260815T1626Z-260816T0100Z/
/O.NEW.KTSA.HT.Y.0037.260816T0100Z-260816T1700Z/
North and Central Sebastian-Southern Crawford-Okfuskee-McIntosh-
Pittsburg-Haskell-Northern Le Flore-Central and Southern Sequoyah-
Including the cities of Stigler, Spiro, Panama, Sallisaw, Fort Smith,
Okemah, Pocola, Arkoma, Checotah, Van Buren, and McAlester
1126 AM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING IN EFFECT FROM NOON TO 8 PM CDT SUNDAY...
...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON CDT
SUNDAY...

* WHAT...Heat index values from 110 to 115 are expected both Saturday
  afternoon and Sunday afternoon. Overnight lows in the upper 70s to
  lower 80s are expected Saturday night.

* WHERE...In Arkansas, Southern Crawford and North and Central
  Sebastian Counties. In Oklahoma, Central and Southern Sequoyah,
  Okfuskee, Haskell, McIntosh, Northern Le Flore, and Pittsburg
  Counties.

* WHEN...For the first Extreme Heat Warning, until 8 PM CDT this
  evening. For the Heat Advisory, from 8 PM this evening to noon CDT
  Sunday. For the second Extreme Heat Warning, from noon to 8 PM CDT
  Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Heat related illnesses are
  possible especially impacting those not acclimated to the
  conditions or those performing strenuous activities.

* ADDITIONAL DETAILS...Effects from this extended heat can accumulate
  over the days, especially for those with limited access to air
  conditioning given how warm the nights are staying. It is important
  to check in on those vulnerable to heat.

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.

&&

$$

OKZ055>058-060>064-066-067-070-354-160600-
/O.UPG.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0014.260816T1700Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0013.260815T1626Z-260816T0100Z/
/O.NEW.KTSA.HT.Y.0037.260816T0100Z-260816T1700Z/
Washington OK-Nowata-Craig-Ottawa-Tulsa-Rogers-Mayes-Delaware-
Creek-Okmulgee-Wagoner-Muskogee-Southeast Osage-
Including the cities of Nowata, Bartlesville, Vinita, Jay, Wagoner,
Hominy, Miami, Pryor, Grove, Claremore, Okmulgee, Sapulpa, Muskogee,
and Tulsa
1126 AM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING IN EFFECT FROM NOON TO 8 PM CDT SUNDAY...
...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON CDT
SUNDAY...

* WHAT...Heat index values from 110 to 115 are expected both Saturday
  afternoon and Sunday afternoon. Overnight lows in the upper 70s to
  locally, the mid 80s are expected Saturday night.

* WHERE...Portions of east central and northeast Oklahoma.

* WHEN...For the first Extreme Heat Warning, until 8 PM CDT this
  evening. For the Heat Advisory, from 8 PM this evening to noon CDT
  Sunday. For the second Extreme Heat Warning, from noon to 8 PM CDT
  Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Heat related illnesses are
  possible especially impacting those not acclimated to the
  conditions or those performing strenuous activities.

* ADDITIONAL DETAILS...Effects from this extended heat can accumulate
  over the days, especially for those with limited access to air
  conditioning given how warm the nights are staying. It is important
  to check in on those vulnerable to heat.

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.

&&

$$

ARZ220-160600-
/O.UPG.KTSA.HT.Y.0036.000000T0000Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0014.260816T1700Z-260817T0100Z/
/O.NEW.KTSA.XH.W.0013.260815T1626Z-260816T0100Z/
/O.EXB.KTSA.HT.Y.0035.260816T0100Z-260816T1700Z/
Central and Southern Franklin-
Including the cities of Cravens, Ozark, Watalula, Jethro, Cecil,
Lonelm, and Charleston
1126 AM CDT Sat Aug 15 2026

...EXTREME HEAT WARNING IN EFFECT FROM NOON TO 8 PM CDT SUNDAY...
...EXTREME HEAT WARNING IN EFFECT UNTIL 8 PM CDT THIS EVENING...
...HEAT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO NOON CDT
SUNDAY...

* WHAT...Heat index values from 110 to 115 are expected both Saturday
  afternoon and Sunday afternoon. Overnight lows in the upper 70s are
  expected Saturday night.

* WHERE...Central and Southern Franklin County.

* WHEN...For the first Extreme Heat Warning, until 8 PM CDT this
  evening. For the Heat Advisory, from 8 PM this evening to noon CDT
  Sunday. For the second Extreme Heat Warning, from noon to 8 PM CDT
  Sunday.

* IMPACTS...Heat related illnesses increase significantly during
  extreme heat and high humidity events. Heat related illnesses are
  possible especially impacting those not acclimated to the
  conditions or those performing strenuous activities.

* ADDITIONAL DETAILS...Effects from this extended heat can accumulate
  over the days, especially for those with limited access to air
  conditioning given how warm the nights are staying. It is important
  to check in on those vulnerable to heat.

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.

&&

$$

ARZ001-002-010-011-119-120-229-OKZ049-053-068-069-075-172-276-376-
160600-
/O.CON.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
Benton-Carroll-Washington AR-Madison-Northern Crawford-Northern
Franklin-Southern Sebastian-Pushmataha-Choctaw-Cherokee-Adair-
Latimer-Northern Sequoyah-Central Le Flore-Southern Le Flore-
Including the cities of Antlers, Hugo, Clayton, Huntsville,
Bentonville, Fayetteville, Stilwell, Springdale, Patterson, Liberty,
Mansfield, Paradise, Eureka Springs, Wilburton, Barnes, Rogers,
Hartford, Huntington, Berryville, Marble City, Talihina,
Mountainburg, Tahlequah, and Poteau
1126 AM CDT Sat Aug 15 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SUNDAY...

* WHAT...Heat index values from 105 to 110 are expected both Saturday
  afternoon and Sunday afternoon. Overnight lows from the mid to
  upper 70s are expected Saturday night.

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

* WHEN...Until 8 PM CDT Sunday.

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

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.

&&

$$

OKZ059-154-254-160600-
/O.CON.KTSA.HT.Y.0035.000000T0000Z-260817T0100Z/
Pawnee-Western Osage-Northeast Osage-
Including the cities of Pawhuska, Shidler, Pawnee, and Fairfax
1126 AM CDT Sat Aug 15 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SUNDAY...

* WHAT...Heat index values from 105 to 110 are expected both Saturday
  afternoon and Sunday afternoon. Overnight lows from the mid to
  upper 70s are expected Saturday night.

* WHERE...Northeast Osage, Pawnee, and Western Osage Counties.

* WHEN...Until 8 PM CDT Sunday.

* 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.

&&

$$


File: /home/ldm/var/data/BY_SOURCE/KTSA/WWUS74/20260815T1626.txt