• MESO: Mesoscale Discussion 2040

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Dec 16 04:44:23 2021
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    ACUS11 KWNS 160444
    SWOMCD
    SPC MCD 160443=20
    MNZ000-161045-

    Mesoscale Discussion 2040
    NWS Storm Prediction Center Norman OK
    1043 PM CST Wed Dec 15 2021

    Areas affected...northern Minnesota

    Concerning...Blizzard=20

    Valid 160443Z - 161045Z

    SUMMARY...Near-blizzard conditions will develop tonight into
    northern Minnesota, with wind gusts of 40-50 mph expected. Snow
    rates may reach around 1"/hr.

    DISCUSSION...As a deepening surface low tracks northeast toward Lake
    Superior tonight, cooling aloft will result in increasingly
    favorable profiles for heavy snow from west to east across northern
    MN. Forecast soundings show the top of the boundary layer around 870
    mb, with maximum boundary layer winds of 40-45 kt. Given expected
    precipitation rates, these wind gusts to this magnitude appear
    reasonable, resulting in blowing snow and reduced visibilities. The
    heaviest snow rates are likely to occur after 06Z and across
    northern into northeastern MN.

    ..Jewell.. 12/16/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!rCnkQ4dgXcbTQW2Xh8jt_7pMYaO1Bc81kZ8F3KdXQbHjDcXI5FIvJR3Wr5an78yJZ6NTUDCd$=
    for graphic product...

    ATTN...WFO...DLH...FGF...

    LAT...LON 48409197 47839226 46949267 46539336 46489456 46679503
    46919516 47509499 48189470 48669396 48689295 48409197=20



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