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  • MESO: Mesoscale Discussion 1681

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, December 01, 2018 17:47:37
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    ACUS11 KWNS 011647
    SWOMCD
    SPC MCD 011646
    IAZ000-NEZ000-SDZ000-012015-

    Mesoscale Discussion 1681
    NWS Storm Prediction Center Norman OK
    1046 AM CST Sat Dec 01 2018

    Areas affected...Central and northeastern Nebraska into far
    southeast South Dakota

    Concerning...Heavy snow

    Valid 011646Z - 012015Z

    SUMMARY...Heavy/wet snow with rates of 1 to 2 inch per hour are
    expected to continue through mid-afternoon.

    DISCUSSION...Surface analysis shows a 987 mb surface low located
    west of Kansas City at 16Z. Northwest of this surface low, a large
    area of deformation has led to moderate to heavy snow through much
    of the morning. These intense snowfall rates of 1 to 2 inches per
    hour are expected to continue through mid-afternoon in the outlined
    area. Surface temperatures near or slightly above freezing will lead
    to heavy/wet snow with a relatively low snow-liquid ratio. Despite
    winds of 20 to 25 mph with gusts approaching 35 mph, reduced
    visibility and blowing and drifting should be somewhat subdued in
    many locations due to the aforementioned wet snow. As the system
    moves northeast, mid-level winds will become more northerly and
    drier air will move in aloft and lead to reduced snowfall rates by
    later this afternoon.

    ..Bentley.. 12/01/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...FSD...OAX...GID...LBF...

    LAT...LON 41970167 42540094 42939999 43079834 43179719 42919658
    42559647 42269678 42099735 41959775 41489883 41209934
    41050025 41090101 41400149 41630167 41970167



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