WWUS74 KTSA 111013 NPWTSA Heat Advisory National Weather Service Tulsa OK 513 AM CDT Tue Aug 11 2026 ARZ001-002-129-219-220-229-OKZ049-053-055>068-070-071-073>075-154-172-176-254-272-276-354-376 /O.CON.KTSA.HT.Y.0035.260811T1700Z-260812T0100Z/ Benton-Carroll-North and Central Sebastian-Southern Crawford-Central and Southern Franklin-Southern Sebastian-Pushmataha-Choctaw-Washington-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-Northern Sequoyah-Northern Le Flore-Northeast Osage-Central and Southern Sequoyah-Central Le Flore-Southeast Osage-Southern Le Flore ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 8 PM CDT THIS EVENING... * WHAT...Heat index values up to 109 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From noon today to 8 PM CDT this evening. * IMPACTS...Heat related illnesses are possible especially impacting those not acclimated to the conditions or those performing strenuous activities. 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..