• MESO: Mesoscale Discussion 1643

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Aug 29 20:28:06 2021
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    ACUS11 KWNS 292028
    SPC MCD 292027=20

    Mesoscale Discussion 1643
    NWS Storm Prediction Center Norman OK
    0327 PM CDT Sun Aug 29 2021

    Areas affected...central and eastern Lower Michigan

    Concerning...Severe Thunderstorm Watch 473...

    Valid 292027Z - 292200Z

    The severe weather threat for Severe Thunderstorm Watch 473

    SUMMARY...A few strong to severe gusts remain possible across
    central and eastern Lower Michigan.

    DISCUSSION...Scattered storms persist along a line from northern
    parts of Lake Huron into southwest Lower MI. The more robust portion
    of the line produced gusts in excess of 40 kt across northern parts
    of the state. Farther south, ambient gusts above 30 kt were noted
    away from convection, with further augmentation possible as storms
    pass by.=20

    Little additional activity is expected behind the primary line of
    storms as low-level winds veer, but increasing coverage is possible
    over southern portions of Lower MI as the air mass remains unstable
    with MLCAPE to around 2000 J/kg. Wind fields in this region remain
    weak, suggesting little organization. However, locally strong gusts
    will be possible.

    ..Jewell.. 08/29/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!rdjkSMxRYArmcmp6qgbPGoHVLCx1PcYJJTREk1b53ZJxiRgFcISnqSPNg4wZKn-lCfsBz8vn$=
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    LAT...LON 42538542 43298475 43888429 45018373 45238350 44918323
    44358323 44058270 43808253 43148234 42478254 42438350
    42338466 42338527 42538542=20

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