• MESO: Mesoscale Discussion 0528

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue May 4 17:21:40 2021
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    ACUS11 KWNS 041721
    SPC MCD 041721=20

    Mesoscale Discussion 0528
    NWS Storm Prediction Center Norman OK
    1221 PM CDT Tue May 04 2021

    Areas affected...Northwest Georgia

    Concerning...Severe Thunderstorm Watch 143...145...

    Valid 041721Z - 041915Z

    The severe weather threat for Severe Thunderstorm Watch 143, 145

    SUMMARY...Damaging winds remain possible across northwest Georgia as
    an ongoing MCS continues to move east/southeast across the region.

    DISCUSSION...An ongoing MCS continues to propagate to the
    east/southeast across northwest GA. Regional VWPs and RAP
    mesoanalysis suggest 0-3 km bulk shear vectors are generally between
    20-35 knots and are mainly aligned along the MCS's long-axis.
    However, a few meridional bulges in the line have been noted in
    recent KFFC imagery, which will locally enhance the potential for
    damaging winds as the outflow becomes more orthogonal to somewhat
    strong low-level shear vectors. This MCS should continue to
    propagate to the east/southeast over the next few hours and will
    continue to pose a wind threat (particularly with any north-south
    oriented bulges) as MLCAPE increases across central/eastern GA amid
    partly cloudy skies and boundary-layer warming. Additional
    development upstream across northern AL will likely move into
    northern GA in the wake of the ongoing MCS later this afternoon and
    may pose an additional risk for severe winds.

    ..Moore.. 05/04/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!roIzkWyoz-PTZqdExdw2cmh9BCXdQHRCFIhn5Aq3nxNmtLVbEA4tBNZG4TWWNmzQYuvCYWCM$=
    for graphic product...


    LAT...LON 33758533 34418482 35108375 35208318 35048261 34788228
    34218236 33818282 33418385 33188483 33398547 33758533=20

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