Area Forecast Discussion
Issued by NWS Tulsa, OK
Issued by NWS Tulsa, OK
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627 FXUS64 KTSA 161549 AFDTSA Area Forecast Discussion National Weather Service Tulsa OK 1049 AM CDT Thu May 16 2024 ...New UPDATE... .UPDATE... Issued at 1048 AM CDT Thu May 16 2024 The main update this morning was to adjust PoPs based on latest obs/trends. MCS across TX has a large stratiform precip region that is moving east across southern OK this morning. Raised PoPs down south and reduced PoPs across the north where activity is much more scattered. As we go into the afternoon PoPs will drop off generally, but remain widely scattered to scattered. With upper trough sliding in and the potential for some sunshine as clearing is noted behind MCS per satellite data, you can`t rule out spotty showers and storms. Data seems to be pointing to NW AR for a bit better storm coverage, and this is reflected in the grids. Lacy && .SHORT TERM... (Today) Issued at 243 AM CDT Thu May 16 2024 Strong thunderstorms continue this morning across portions of northeast Oklahoma, with scattered storms bubbling to the southwest in parts of central and southwest Oklahoma as well. The strongest storms are developing ahead of an MCV near the Oklahoma/Kansas border very near I-35 moving to the east- northeast. The overall potential for severe weather through the rest of the early morning hours today continues to wane, although at least a low chance for marginally severe hail and wind across northeast and east central Oklahoma will exist through sunrise given available shear and instability. Attention then turns to the development ongoing in the South Plains region of Texas, extending into southwest Oklahoma. The expectation is for this to continue to shift eastward through the day, moving into portions of southeast and east central Oklahoma in a decreasing phase after sunrise. A front expected to be near I-44 mid to late morning should also become a focus for additional development into the afternoon as well. && .LONG TERM... (Tonight through Wednesday) Issued at 243 AM CDT Thu May 16 2024 Thunderstorm coverage is expected to increase this evening, continuing through the rest of the night and into Friday, as the main upper level system finally approaches and moves through the region. A marginal severe weather threat will exist with storms this evening and again on Friday, with the greatest potential likely to be in southeast Oklahoma and into western Arkansas given the location of the co-located instability/shear max. Locally heavy rainfall will continue to be a concern, as well, considering antecedent conditions and well above normal precipitable water values. Upper level ridging behind the departing upper level system will signal an end to the current active period, with dry weather for most of the weekend and temperatures running about 10 degrees above normal. MCS activity Sunday night and again Monday night could again affect areas near the Kansas and Missouri borders on the northern periphery of the upper ridge. Deterministic models are in much better agreement on their handling of the Tuesday front, bringing it through the area. This should lead to higher shower and thunderstorm chances and lower temperatures from Tuesday through at least mid week. High temperatures have been trended strongly toward the cooler traditional MOS guidance blend beginning Tuesday. && .AVIATION... (12Z TAFS) Issued at 637 AM CDT Thu May 16 2024 Another low-confidence aviation forecast through the next 24 hours. Scattered showers and thunderstorms this morning will taper off late in the morning and through the afternoon, with a few showers lingering. As a result, VFR should prevail at all TAF sites as the precipitation becomes more isolated late this morning and into the afternoon. Winds will stay light and variable through much of the period. Another round of scattered showers and thunderstorms is expected late/overnight tonight and into Friday morning. Coverage and duration is still questionable at this time. Regardless of precipitation/convection coverage, ceilings and visibilities may lower to MVFR/IFR late tonight into Friday morning. Mejia && .PRELIMINARY POINT TEMPS/POPS... TUL 80 62 78 60 / 60 50 40 10 FSM 83 65 78 63 / 60 60 60 20 MLC 81 62 78 60 / 80 60 50 20 BVO 78 58 77 57 / 50 40 30 10 FYV 80 60 76 58 / 50 60 60 20 BYV 80 61 75 59 / 50 60 70 20 MKO 80 62 76 60 / 70 50 50 20 MIO 77 60 76 59 / 50 40 50 10 F10 79 62 76 59 / 70 50 50 10 HHW 80 63 78 62 / 80 60 40 20 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...None. AR...None. && $$ UPDATE...30 SHORT TERM...22 LONG TERM....22 AVIATION...67