textproduct: Tulsa

KEY MESSAGES

Updated at 609 AM CDT Sun Jun 28 2026

- Hot, humid and dry weather persists for much of this week. Heat advisory headlines are in effect for portions of the area Sunday, and may be needed in the days following.

- There will be low chances for diurnally driven storms in the terrain of SE OK and NW AR during the latter part of next week.

SHORT TERM

(Through Sunday) Issued at 1132 PM CDT Sat Jun 27 2026

Quiet conditions are expected through the overnight hours with temperatures only falling into the 70s due to sustained south winds. Aside from some passing mid and high clouds, plenty of sunshine is likely Sunday with temperatures similar or slightly warmer than Saturday. Despite breezy afternoon south winds reducing WBGT impact somewhat, a humid airmass remains in place, and heat indices will again climb to near or above advisory criteria (105F) across the FA. Based on observations Saturday afternoon, have pulled dewpoints higher than NBM output, resulting in advisory-level heat across the AR River Valley and into portions of NE OK. The Heat Advisory was expanded as a result and runs between 1 and 8 PM.

LONG TERM

(Sunday Night through Saturday) Issued at 1132 PM CDT Sat Jun 27 2026

Mid-upper level ridging will be the dominant feature in the extended forecast, with a prolonged period of hot and mostly dry conditions. High temperatures will tend to remain nearly steady or slowly increase over the next several days. Coupled with dewpoints rising into the 70s during the afternoon, max daily heat index values will likely remain near or above 105 degrees for portions of the area through the week. Additional heat headlines are probable. By mid to late week, ridging drifts east and weakens slightly, allowing southeasterly flow to bring increasing moisture into southeast Oklahoma and west-central/northwest Arkansas. This will allow for diurnal isolated to scattered storms, mainly originating over the higher terrain areas. The rainfall footprint likely remains spotty in this regime and most locations should remain dry through the week. Guidance suggests the synoptic pattern may eventually support more widespread convection by the holiday weekend, but details vary at this time.

AVIATION

(12Z TAFS) Issued at 609 AM CDT Sun Jun 28 2026

VFR conditions will prevail through the period at all terminals. LLWS will be present at most locations early this morning again later Sunday evening, with sfc gusts 20-25 knots common out of the south during the afternoon. Low clouds have spread into far southeast OK but most likely will remain east of MLC and south of FSM.

PRELIMINARY POINT TEMPS/POPS

TUL 93 80 94 79 / 0 0 0 0 FSM 94 78 95 77 / 0 0 0 0 MLC 94 78 94 78 / 0 0 0 0 BVO 92 76 93 75 / 0 0 0 0 FYV 90 74 90 74 / 0 0 0 0 BYV 90 74 91 74 / 0 0 0 0 MKO 92 77 93 77 / 0 0 0 0 MIO 91 77 92 77 / 0 0 0 0 F10 93 77 93 77 / 0 0 0 0 HHW 93 76 94 75 / 0 0 0 0

TSA WATCHES/WARNINGS/ADVISORIES

OK...Heat Advisory from 1 PM this afternoon to 8 PM CDT this evening for OKZ055>057-059>062-064-066-067-070-074-154-176-254-272- 354.

AR...Heat Advisory from 1 PM this afternoon to 8 PM CDT this evening for ARZ129-219-220.