WWUS74 KTSA 211823 NPWTSA Extreme Heat Warning National Weather Service Tulsa OK 123 PM CDT Tue Jul 21 2026 ARZ129-219-220-OKZ055>058-060>063-066-067-070-071-074-176-254-272-354 /O.CON.KTSA.XH.W.0003.000000T0000Z-260722T0100Z/ North and Central Sebastian-Southern Crawford-Central and Southern Franklin-Washington-Nowata-Craig-Ottawa-Tulsa-Rogers-Mayes-Delaware-Okmulgee-Wagoner-Muskogee-McIntosh-Haskell-Northern Le Flore-Northeast Osage-Central and Southern Sequoyah-Southeast Osage ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values from 110 to 120 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. 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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