569 FXUS64 KTSA 151114 AFDTSAArea Forecast Discussion National Weather Service Tulsa OK 614 AM CDT Mon Sep 15 2025
...New AVIATION...
.KEY MESSAGES... Issued at 1130 AM CDT Sun Sep 14 2025
- 10 to 40% chance of showers and thunderstorms this afternoon and evening, with the highest potential across northwest Arkansas and far eastern Oklahoma.
- Any storms this afternoon may produce strong wind gusts and locally heavy rainfall.
- Higher, more widespread rain and thunder chances arrive mid week with temperatures falling back to near or below average.
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.SHORT TERM... (Today) Issued at 1215 AM CDT Mon Sep 15 2025
Sunday`s upper low has navigated into the northern Plains, with broad troughing extending west into the Pacific Northwest. Meanwhile, another upper low pressure system is noted across the southeastern states today. This provides a weak, elongated ridge between these features, extending from the southern plains toward the Great Lakes. A weak upper level wave associated with Sunday`s system will impinge on the ridge axis today and, combined with subtle low level convergence, will allow for another round of afternoon and evening showers and thunderstorms. Coverage appears to be slighter higher than previous days, primarily across NW AR and far E OK, where PoPs have been increased to 20-40%. Severe weather is not expected, but any storms this afternoon may produce strong wind gusts and locally heavy rainfall. Further west, most locations across E OK are still likely to remain dry with showers/ storms remaining more isolated. Precip likely diminishes with loss of daytime heating and quiet conditions are forecast overnight tonight. Temperatures today will be similar to Sunday given little change in the airmass... generally in the lower to mid 90s.
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.LONG TERM... (Tonight through Sunday) Issued at 1215 AM CDT Mon Sep 15 2025
Little change in the synoptic pattern will favor another day of diurnal showers and thunderstorms on Tuesday, particularly across far E OK and NW AR. Gusty winds and locally heavy rainfall will again be the main concerns with any thunderstorms. Temperatures also remain nearly steady in the lower to mid 90s. By late Tuesday into Wednesday, another upper level low will be pushing into the plains. This feature is projected to linger in the CONUS, providing widespread rain chances through late week as smaller disturbances rotate around the parent low. In general, PoPs have trended upwards Wednesday through Friday, in addition to potential for more rainfall overall. Severe weather and flooding potential still appear unlikely during this period, but trends will be watched closely as rainfall totals have been increasing as of the last several model runs. Guidance suggests weak troughing could remain in the area this weekend and potentially into early next week, with continued low rain chances (10-20%).
Temperatures will fall back to near or below average by mid to late week, with most locations topping out in the lower 80s by Thursday or Friday. Currently held temps near the NBM over the weekend into next week (lower 80s), reflecting a wetter pattern. If troughing exits quicker than currently forecast, forecast temperatures may need to be adjusted upward. Low temperatures generally remain in the 60s/ lower 70s through the period.
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.AVIATION... (12Z TAFS) Issued at 613 AM CDT Mon Sep 15 2025
While VFR conditions are expected to prevail through the forecast period, there remains a small chance of early morning fog development in a few locations. Isolated to scattered thunderstorms are expected this afternoon with higher chances confined to northwest AR. Any direct thunderstorm impact could result in brief MVFR conditions.
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.PRELIMINARY POINT TEMPS/POPS... TUL 94 69 92 69 / 20 10 10 10 FSM 95 70 94 69 / 30 20 20 10 MLC 93 67 93 67 / 20 10 10 10 BVO 93 65 91 65 / 20 10 10 10 FYV 92 65 91 65 / 30 20 30 10 BYV 91 65 89 65 / 40 20 40 10 MKO 93 68 92 67 / 20 10 10 10 MIO 92 67 91 65 / 20 10 20 10 F10 92 67 92 66 / 20 10 10 0 HHW 92 68 91 67 / 20 10 10 10
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.TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. &&
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SHORT TERM...43 LONG TERM....43 AVIATION...14
NWS TSA Office Area Forecast Discussion