WWUS74 KTSA 290450 NPWTSA Heat Advisory National Weather Service Tulsa OK 1150 PM CDT Sun Jun 28 2026 ARZ129-219-220-OKZ055>058-060>062-067-070-074-176-254-272-354 /O.CON.KTSA.HT.Y.0008.260629T1800Z-260630T0100Z/ North and Central Sebastian-Southern Crawford-Central and Southern Franklin-Washington-Nowata-Craig-Ottawa-Tulsa-Rogers-Mayes-Wagoner-Muskogee-Haskell-Northern Le Flore-Northeast Osage-Central and Southern Sequoyah-Southeast Osage ...HEAT ADVISORY REMAINS IN EFFECT FROM 1 PM TO 8 PM CDT MONDAY... * WHAT...Heat index values up to 105 expected. * WHERE...Portions of northwest and west central Arkansas and east central, northeast, and southeast Oklahoma. * WHEN...From 1 PM to 8 PM CDT Monday. * 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..