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  • MESO: Mesoscale Discussion 0929

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 3 04:43:21 2023
    ACUS11 KWNS 030443
    SWOMCD
    SPC MCD 030442=20
    TXZ000-030645-

    Mesoscale Discussion 0929
    NWS Storm Prediction Center Norman OK
    1142 PM CDT Fri Jun 02 2023

    Areas affected...parts of south central Texas into adjacent portions
    of the Rio Grande Valley

    Concerning...Severe Thunderstorm Watch 257...

    Valid 030442Z - 030645Z

    The severe weather threat for Severe Thunderstorm Watch 257
    continues.

    SUMMARY...A cluster of thunderstorms overspreading areas near and
    southwest through south of San Antonio continues to pose a risk for
    severe wind and hail. However, this likely will gradually diminish
    during the next few hours as it continues to progress
    east-southeastward toward the middle Texas coastal plain.

    DISCUSSION...A mesoscale convective vortex has become somewhat
    better defined to the northwest of the San Antonio vicinity, and
    strong southeasterly near-surface inflow has contributed to the
    maintenance of vigorous convection in a narrow arcing band trailing southwestward into the vicinity of the Rio Grande River. Eastward
    across San Antonio toward the coastal plain, increasing inhibition
    associated with relatively warm and dry layers in the
    lower/mid-troposphere is expected to result in weakening trends
    during the next few hours. Based on recent trends in lightning
    flash rates and radar imagery, this may gradually already be
    underway, but perhaps not quite as rapidly as suggested by the
    convection allowing model output.

    ..Kerr.. 06/03/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-zbK3mmskPyLJ1qtI8CiWbGTNOrR4BUfO7H-jWbkOEh6yNPyHtGgl7KQl9mDdH9E4exQjxEsq= -UqEEsT-C7t6LIqb14$ for graphic product...

    ATTN...WFO...HGX...CRP...EWX...

    LAT...LON 28999941 29739843 29849742 28979669 27939905 28740019
    28999941=20


    =3D =3D =3D
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