WWUS74 KTSA 080057 NPWTSA Heat Advisory National Weather Service Tulsa OK 757 PM CDT Fri Aug 7 2026 ARZ119-120-OKZ055>068-070-071-073>075-154-172-254-354 /O.CON.KTSA.HT.Y.0032.260808T1700Z-260809T0100Z/ Northern Crawford-Northern Franklin-Washington-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers-Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Muskogee-McIntosh-Pittsburg-Haskell-Latimer-Western Osage-Northern Sequoyah-Northeast Osage-Southeast Osage ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TO 8 PM CDT SATURDAY... * 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 to 8 PM CDT Saturday. * 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..