504
WWUS74 KOUN 210506
NPWOUN
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE NORMAN OK
1206 AM CDT FRI AUG 21 2026
OKZ018-019-044-TXZ090-211915-
/O.UPG.KOUN.HT.Y.0040.000000T0000Z-260822T0200Z/
/O.EXA.KOUN.XH.W.0014.000000T0000Z-260822T0200Z/
KINGFISHER-LOGAN-COTTON-CLAY-
INCLUDING THE CITIES OF OKARCHE, TEMPLE, HENNESSEY, GUTHRIE,
KINGFISHER, WALTERS, AND HENRIETTA
1206 AM CDT FRI AUG 21 2026
..EXTREME HEAT WARNING IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 111.
* WHERE...IN OKLAHOMA, KINGFISHER, LOGAN, AND COTTON COUNTIES. IN
TEXAS, CLAY COUNTY.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* 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.
OKZ024-025-027>032-039>043-045>048-050>052-211915-
/O.CON.KOUN.XH.W.0014.000000T0000Z-260822T0200Z/
CANADIAN-OKLAHOMA-GRADY-MCCLAIN-CLEVELAND-POTTAWATOMIE-SEMINOLE-
HUGHES-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-JEFFERSON-CARTER-
JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-
INCLUDING THE CITIES OF SULPHUR, ADA, MARIETTA, YUKON, WAURIKA,
MADILL, ARDMORE, NORMAN, THACKERVILLE, WEWOKA, PURCELL, WETUMKA,
PAULS VALLEY, ATOKA, DUNCAN, DURANT, NEWCASTLE, LINDSAY, CONCHO, EL
RENO, CHICKASHA, RYAN, COALGATE, OKLAHOMA CITY, KINGSTON, WYNNEWOOD,
SHAWNEE, RINGLING, HOLDENVILLE, MOORE, SEMINOLE, TISHOMINGO, DAVIS,
BLANCHARD, MUSTANG, AND TUTTLE
1206 AM CDT FRI AUG 21 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS
EVENING...
* WHAT...DANGEROUSLY HOT CONDITIONS WITH HEAT INDEX VALUES UP TO 113.
* WHERE...PORTIONS OF CENTRAL, EAST CENTRAL, SOUTHEAST, AND SOUTHERN
OKLAHOMA.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* 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.
OKZ005-010-211915-
/O.EXA.KOUN.HT.Y.0040.000000T0000Z-260822T0200Z/
WOODS-WOODWARD-
INCLUDING THE CITIES OF WOODWARD AND ALVA
1206 AM CDT FRI AUG 21 2026
..HEAT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 108.
* WHERE...WOODS AND WOODWARD COUNTIES.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
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.
OKZ006>008-011>017-020>023-026-033>038-TXZ083>089-211915-
/O.CON.KOUN.HT.Y.0040.000000T0000Z-260822T0200Z/
ALFALFA-GRANT-KAY-MAJOR-GARFIELD-NOBLE-ROGER MILLS-DEWEY-CUSTER-
BLAINE-PAYNE-BECKHAM-WASHITA-CADDO-LINCOLN-HARMON-GREER-KIOWA-
JACKSON-TILLMAN-COMANCHE-HARDEMAN-FOARD-WILBARGER-WICHITA-KNOX-
BAYLOR-ARCHER-
INCLUDING THE CITIES OF LAWTON, SCOTLAND, WELLSTON, WATONGA, CARMEN,
PRAGUE, ENID, VICI, DAVENPORT, FAIRVIEW, WICHITA FALLS, QUANAH,
PERRY, CLINTON, ANADARKO, CHEROKEE, LAMONT, GRANITE, SAYRE, OKEENE,
SNYDER, CROWELL, SHEPPARD AFB, HINTON, SEILING, SENTINEL, BURNS FLAT,
HOLLIDAY, SEYMOUR, STROUD, LAKESIDE CITY, POND CREEK, HELENA,
CHEYENNE, HOBART, KNOX CITY, MEEKER, ARCHER CITY, GEARY, MEDFORD, ELK
CITY, VERNON, STILLWATER, WAKITA, CORDELL, BLACKWELL, HAMMON,
FREDERICK, LEEDEY, TALOGA, MUNDAY, CHANDLER, PONCA CITY, WEATHERFORD,
MANGUM, HOLLIS, AND ALTUS
1206 AM CDT FRI AUG 21 2026
..HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING
* WHAT...HEAT INDEX VALUES UP TO 109.
* WHERE...PORTIONS OF CENTRAL, NORTHERN, NORTHWEST, SOUTHWEST, AND
WESTERN OKLAHOMA AND NORTHERN TEXAS.
* WHEN...UNTIL 9 PM CDT THIS EVENING.
* IMPACTS...HOT TEMPERATURES AND HIGH HUMIDITY MAY CAUSE HEAT
ILLNESSES.
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.
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