WWUS74 KTSA 311710 NPWTSA Extreme Heat Warning National Weather Service Tulsa OK 1210 PM CDT Fri Jul 31 2026 ARZ129-219-220-229-OKZ055>068-070-071-073>075-154-176-254-272-276-354-376 /O.CON.KTSA.XH.W.0010.000000T0000Z-260801T0200Z/ North and Central Sebastian-Southern Crawford-Central and Southern Franklin-Southern Sebastian-Washington-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-Northern Le Flore-Northeast Osage-Central and Southern Sequoyah-Central Le Flore-Southeast Osage-Southern Le Flore ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING... * WHAT...Dangerously hot conditions with heat index values up to 114. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...Until 9 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. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1..