FLUS44 KTSA 221810 HWOTSA Hazardous Weather Outlook National Weather Service Tulsa OK 110 PM CDT Sat Aug 22 2026 ARZ001-002-010-011-119-120-129-219-220-229-OKZ049-053-055>071- 073>075-154-172-176-254-272-276-354-376-231815- Benton-Carroll-Washington AR-Madison-Northern Crawford- Northern Franklin-North and Central Sebastian-Southern Crawford- Central and Southern Franklin-Southern Sebastian-Pushmataha- Choctaw-Washington OK-Nowata-Craig-Ottawa-Pawnee-Tulsa-Rogers- Mayes-Delaware-Creek-Okfuskee-Okmulgee-Wagoner-Cherokee-Adair- 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- 110 PM CDT Sat Aug 22 2026 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...This Afternoon and Tonight. SEVERE THUNDERSTORM. RISK...Limited. AREA...Primarily southeast of Interstate 44. ONSET...After 3 PM. DANGEROUS HEAT. RISK...Elevated. AREA...Southeast Oklahoma into west central Arkansas. ONSET...Ongoing. DISCUSSION... Thunderstorm chances will increase this afternoon and evening primarily southeast of Interstate 44. A few severe storms will be possible especially across western Arkansas with locally damaging winds the primary hazard. Additionally, hot temperatures continue today across southeast Oklahoma and west central Arkansas. Widespread cloud cover has lessened the heat stress compared to recent days but any outdoor activities should remain aware of potential heat impacts. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Local Spotter Activation May Be Needed. .DAYS TWO THROUGH SEVEN...Sunday through Friday. SUNDAY and MONDAY...Thunderstorm and Dangerous Heat Potential. TUESDAY...Dangerous Heat Potential. WEDNESDAY...Thunderstorm and Dangerous Heat Potential. THURSDAY and FRIDAY...Dangerous Heat Potential. EXTENDED DISCUSSION... Dangerous heat will continue for much of the upcoming week, with afternoon heat index values in the 100 to 110 degree range each day. Periodic thunderstorm chances will also occur, with Sunday night looking to be the most favored time for storms, mainly from northeast Oklahoma into northwest Arkansas. weather.gov/tulsa contains additional information. $$