Area Forecast Discussion
Issued by NWS Dallas/Fort Worth, TX
Issued by NWS Dallas/Fort Worth, TX
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641 FXUS64 KFWD 050909 AFDFWD Area Forecast Discussion National Weather Service Fort Worth TX 409 AM CDT Wed Jun 5 2024 ...New Long Term... .SHORT TERM... /Issued 204 AM CDT Wed Jun 5 2024/ /Today through Thursday Afternoon/ Currently, a stout MCS is currently moving south through North Texas as a shortwave trough transits through the Central Plains. RAP analysis shows 8-9 degC/km lapse rates and abundant instability, allowing for a continued threat for strong to severe- caliber wind and hail threats through this morning. As the cluster has taken on quite a bowing structure, damaging wind gusts will remain the primary threat along the leading edge of the line. Additionally, PWATs > 1.5" will promote a continued flood threat, especially for areas that have received heavy rain in the last few days. A Flood Watch remains in effect through this morning for areas east of I-35 that are expected to receive the majority of this morning`s rainfall. Just behind this MCS, a weak cold front will move south across the region as the base of the shortwave trough continues to swing into the Deep South. This front will help to make outdoor conditions a bit more bearable by bringing slightly cooler and less humid air to North and Central Texas. Expect afternoon highs to peak in the mid 80s to low 90s. Slightly drier air filtering into the region, coupled with those cooler temperatures, will help to keep afternoon heat indices below Heat Advisory criteria for the majority of the region. The weak front will eventually stall across southern Central Texas. Lingering storms near the frontal boundary will be possible through this afternoon, but with subsident high surface pressure quickly moving into the region, coverage will be very isolated. All rain should come to an end by this evening, with most of the region continuing to experience northeasterly winds behind the stalled front. The surface high will keep winds light and conditions fairly clear going into Thursday. Saturated soils and more efficient radiational processes will allow for patchy fog/mist overnight into Thursday morning, mainly east of I-35. Thursday afternoon will be a tad warmer in the 90s region-wide as southerly winds shift the stalled front back northward as a warm front. Prater && .LONG TERM... /NEW/ Update: Not much change has been made to the previous long term forecast aside from incorporating new long term NBM guidance, therefore the discussion below remains valid. The biggest uncertainty as of this issuance is the storm potential on Friday afternoon as a front stalls near the Red River. There still remains a low chance for precipitation, as some ensemble and cluster guidance shows slightly wetter solutions during Friday afternoon. The lack of upper level forcing for Friday atop the stalled front is keeping exact coverage and intensity a bit ambiguous. With all this in mind, have kept the previous forecast`s 15-20% PoPs across portions of North Texas for now. Prater Previous Discussion: /Wednesday Night and Beyond/ Mid-level high pressure will push overhead from the west Wednesday night into Thursday, allowing for our first day without any rain chances over our forecast area Thursday. With sunny skies region- wide and rain-free conditions, expect afternoon highs to peak in the mid- to upper 90s across much of North and Central Texas Thursday afternoon. Surface low pressure transiting east across Ontario and the Great Lakes region will drag a weak cold front south across the Plains toward North Texas Thursday night into Friday. Confidence is highest in the frontal boundary stalling near or just north of the Red River early Friday. High-resolution guidance over the next few days will help increase our confidence in a more precise placement of this boundary. Although mid-level ridging and a subtle capping inversion will likely inhibit widespread convection from developing during peak heating Friday afternoon, convergence in the vicinity of the surface trough may offer enough lift to get an isolated thunderstorm or two (~15-20% chance) going across portions of North Texas Friday afternoon/evening. Weak flow aloft will limit the severe threat, but a strong storm or two capable of producing small hail and gusty downburst winds remains possible. If any storms develop, they will quickly diminish late Friday evening with the loss of daytime heating. An upper trough looks to dig south over the Northern Great Plains by the weekend shunting the overhead ridge back to the south and west. This will put portions of the Southern Plains back under active northwest flow aloft. Periodic chances for MCS activity will persist through the remainder of the weekend into early next week, with the greatest chances for additional rainfall residing north of the I-20 corridor into Oklahoma. Slightly above-average temperatures in the low to mid-90s are expected over the weekend. Long-range guidance is in decent agreement that a stronger cold front will push into North Texas in the Sunday-Monday time frame, increasing chances for at least isolated to scattered convection across the region. North-northeasterly winds, increased cloudiness, and potential rainfall may help nudge temperatures back down into the mid- to upper 80s early next week. Langfeld && .AVIATION... /Issued 204 AM CDT Wed Jun 5 2024/ /06Z TAFs/ D10: MVFR has blanketed the TAF sites in advance of a MCS. The western edge of the thunderstorm complex should directly impact D10 from 08-12Z. During this time, main impacts will be lightning with strong northerly winds in excess of 20g30kt. Winds will temporarily shift back to ESE- SE through the rest of the morning before a weak front moves through around 17Z and prevails N-NE winds through the rest of the day. VFR is expected through the end of the period. ACT: Southerly gusty winds and MVFR will prevail at ACT through the early morning hours, before the associated MCS gust front shifts winds to the north around 12-14Z. Winds will transition to prevailing N-NE late this afternoon around 22Z as the weak front moves through. VFR is expected through the end of the period. Prater && .PRELIMINARY POINT TEMPS/POPS... Dallas-Ft. Worth 91 73 95 74 94 / 30 0 0 0 20 Waco 90 73 93 72 93 / 30 5 0 0 5 Paris 86 67 92 69 89 / 30 0 0 0 20 Denton 89 69 94 70 93 / 20 0 0 0 20 McKinney 88 69 92 71 92 / 40 0 0 0 20 Dallas 92 73 96 74 94 / 40 0 0 0 20 Terrell 88 70 92 71 92 / 50 0 0 0 20 Corsicana 90 72 93 73 94 / 50 0 0 0 10 Temple 92 72 93 72 95 / 30 5 0 0 5 Mineral Wells 92 70 95 71 95 / 10 0 0 0 20 && .FWD WATCHES/WARNINGS/ADVISORIES... Flood Watch until 10 AM CDT this morning for TXZ093>095-104>107- 120>123-135-148. && $$