• MESO: Mesoscale Discussion 1247

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 24 23:32:11 2023
    ACUS11 KWNS 242332
    SWOMCD
    SPC MCD 242331=20
    TXZ000-250130-

    Mesoscale Discussion 1247
    NWS Storm Prediction Center Norman OK
    0631 PM CDT Sat Jun 24 2023

    Areas affected...Portions of western and west-central Texas

    Concerning...Severe potential...Watch unlikely=20

    Valid 242331Z - 250130Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated high-based thunderstorms are expected this
    evening. A few instances of damaging downburst winds and or
    marginally severe hail are possible. Though, uncertainty on storm
    coverage and severity suggest a weather watch is unlikely.

    DISCUSSION...As of 2325 UTC, early evening radar and satellite
    imagery showed high-based cumulus/thunderstorms developing along the
    dryline in West TX. Very hot temperatures 100+ F have allowed for
    deep mixing of the boundary layer with cloud bases near or slightly
    above 3 km AGL. Steep low-level lapse rates and weak buoyancy will
    support a few stronger updrafts this evening as isolated storms
    develop. Hi-res guidance suggests a few stronger storms may persist
    for a couple of hours this evening within the well-mixed air mass
    across western/west-central TX. Vertical shear is not overly strong
    at 25-30 kt, but is sufficient for a few organized multi-cell
    storms. Deep inverted-v structures will favor stronger downdrafts
    potentially capable of isolated damaging gusts. Marginally severe
    hail may also be possible with the deeper and robust updrafts. Given
    the isolated nature of the expected storms and the lack of greater
    forcing for ascent, the severe risk is likely to remain isolated.
    Convective trends will be monitored, but a weather watch is
    unlikely.

    ..Lyons/Bunting.. 06/24/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4UXRG7mf5divwPt9mdalGBMy94ZD-Da5xRB3YVA7Ibl1heggqhxiQ6y1mmxbvaaY3jVohrwVu= wq7oPvyD04OyhSjVUU$ for graphic product...

    ATTN...WFO...FWD...OUN...SJT...LUB...MAF...

    LAT...LON 30920109 30840156 30760221 30930232 31160237 31620227
    32960135 33710041 33689927 32919872 31569929 30990084
    30920109=20


    =3D =3D =3D
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