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  • MESO: Mesoscale Discussion 1137

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 17 23:18:42 2023
    ACUS11 KWNS 172318
    SWOMCD
    SPC MCD 172318=20
    FLZ000-GAZ000-ALZ000-MSZ000-LAZ000-180115-

    Mesoscale Discussion 1137
    NWS Storm Prediction Center Norman OK
    0618 PM CDT Sat Jun 17 2023

    Areas affected...portions of the Gulf Coast from LA to FL

    Concerning...Severe Thunderstorm Watch 323...

    Valid 172318Z - 180115Z

    The severe weather threat for Severe Thunderstorm Watch 323
    continues.

    SUMMARY...The severe-weather threat continues for the next couple of
    hours across the Gulf Coast from LA to FL. Damaging wind gusts and
    large hail will be the primary threats.

    DISCUSSION...The first round of scattered, severe thunderstorms are
    currently heading offshore across portions of the Gulf Coast from
    southeast LA through the FL Panhandle. These storms have produced a
    plethora of damaging wind gusts and hail up to 1.75 inches in
    diameter. Temperature deficits in the wake of the storms are around
    20 F, yielding substantial inhibition primarily behind the main
    convective cores. A few strong thunderstorms are ongoing in southern
    MS/AL behind the leading round of storms along the coast. These
    sustained storms have at least transient supercell characteristics
    and pose a threat for local damaging winds and hail. The overall
    threat from this "second" round of storms might be lower due to the
    overturned air in the wake of earlier convection. However, some
    localized recovery has occurred in less-cloudy portions of southern
    MS/AL (e.g., recent warming temperatures at KGZH). This supports a
    continued threat for local damaging wind gusts and hail across WW323
    for the next couple of hours.

    ..Flournoy.. 06/17/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_4oSeUMSxyB0_6dqHTpbh40fgm9vD1hrqATYAixbfBIT23pwhhn9sj-LzuONED7y0FRNbmQjl= czubGA2PuKblSPz3yA$ for graphic product...

    ATTN...WFO...TAE...BMX...MOB...JAN...LIX...

    LAT...LON 30158936 30239059 30699100 31429111 31839045 32148895
    32098794 31698683 31048482 30658433 30158458 30158567
    30138794 30158936=20


    =3D =3D =3D
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