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Area Forecast Discussion
Issued by NWS Tulsa, OK
Issued by NWS Tulsa, OK
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733 FXUS64 KTSA 291537 AFDTSA Area Forecast Discussion National Weather Service Tulsa OK 1037 AM CDT Sat Jun 29 2024 ...New SHORT TERM... .SHORT TERM... (The rest of today ) Issued at 1034 AM CDT Sat Jun 29 2024 A few high-based showers occurred earlier this morning, but have mostly dissipated. Overall expect a decrease in cloud cover into the afternoon with dangerously hot and humid conditions persisting. Latest data continues to support max heat indices in the 110-114 range in a broad corridor through much of eastern OK into the Arkansas River Valley, where heat warning remains in effect. Given current trends will not issue a forecast update at this time. && .LONG TERM... (Tonight through Friday) Issued at 320 AM CDT Sat Jun 29 2024 A frontal boundary will slowly and gradually push southward near the I-40 corridor this evening/tonight. Isolated to scattered showers and thunderstorms will be ongoing from late this afternoon. A few strong to marginally severe thunderstorms may persist through the late evening/overnight hours, though instability should decrease as the evening/night progresses. A brief relief from the heat will occur on Sunday as the cold front continues to sag southward through the forecast area as widespread scattered showers/storms and cloud cover aid in the cool down. A few models show a significant cool down, with the ADJMET producing some of the coolest values of max temperatures reaching the upper 70s/80s for most locations. Opted not to drop temperatures quite that low at this time, but did knock temperatures a couple of degrees lower than what the operational NBM shows. Mid/upper-level ridging will quickly begin to build back overhead Sunday night into Monday. As such, precipitation chances also significantly decrease Tuesday approaches. Did include a slight chance of diurnally-driven showers/storms Monday afternoon, mainly across southeast OK/west-central AR, as Sunday`s cold front lifts back northward as a warm front. Otherwise, heat headlines are expected to return through at least the middle part of next week. By mid- late part of next week, trends in model guidance show another weak cold front approaching from the north, which may increase precipitation chances at the tail-end of next week into next weekend. If this verifies, it would bring in a small relief from the heat. Mejia && .AVIATION... (12Z TAFS) Issued at 627 AM CDT Sat Jun 29 2024 A few showers will continue across portions of NE OK through mid morning, which could briefly impact KBVO. Otherwise, southerly winds will continue ahead of cold front, which is forecast to move into far NE OK by late afternoon/early evening. Scattered showers/ thunderstorms are forecast to develop across portions of NE OK this evening near boundary, potentially spreading into NW AR overnight. Brief IFR conditions will be possible with any of the stronger thunderstorm activity. && .PRELIMINARY POINT TEMPS/POPS... TUL 99 75 86 74 / 20 40 30 10 FSM 100 79 91 75 / 0 20 50 10 MLC 98 77 91 75 / 0 10 30 10 BVO 98 69 82 70 / 20 50 30 10 FYV 98 72 87 69 / 10 40 50 10 BYV 98 72 84 68 / 20 50 50 10 MKO 97 75 88 74 / 10 30 40 10 MIO 97 70 84 70 / 20 60 30 10 F10 98 75 86 73 / 10 20 40 10 HHW 95 78 93 76 / 0 10 20 10 && .TSA WATCHES/WARNINGS/ADVISORIES... OK...Heat Advisory until 9 PM CDT this evening for OKZ058-063-069. Excessive Heat Warning until 9 PM CDT this evening for OKZ049- 053>057-059>062-064>068-070>076. AR...Heat Advisory until 9 PM CDT this evening for ARZ001-002-010-011. Excessive Heat Warning until 9 PM CDT this evening for ARZ019- 020-029. && $$ SHORT TERM...14 LONG TERM....67 AVIATION...12