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  • MESO: Mesoscale Discussion 1956

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Dec 5 03:43:54 2021
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    ACUS11 KWNS 050343
    SWOMCD
    SPC MCD 050343=20
    MNZ000-NDZ000-050745-

    Mesoscale Discussion 1956
    NWS Storm Prediction Center Norman OK
    0943 PM CST Sat Dec 04 2021

    Areas affected...Central and eastern North Dakota

    Concerning...Heavy snow=20

    Valid 050343Z - 050745Z

    SUMMARY...A zone of around 1 inch per hour snowfall rates is
    probable within the next 1-4 hours in parts of central and eastern
    North Dakota.

    DISCUSSION...A broad zone of snowfall has continued to develop
    within a warm advection zone across much of North Dakota into
    west-central Minnesota. A subtle shortwave trough is becoming more
    evident on water vapor satellite imagery in the MT/ND border
    vicinity. This feature is forecast to dig southward this evening. As
    this occurs, increasing mid-level ascent will couple with the
    850-700 mb warm advection zone to produce areas of higher snowfall
    rates over the next 1-4 hours. The modest mid-level ascent suggests
    that snowfall rates of around 1 inch per hour will generally be the
    peak for the event. However, localized higher rates up to 1.5 inches
    per hour could briefly occur, particularly in east-central North
    Dakota.

    ..Wendt.. 12/05/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!ql4Sq9sCKh8QSEQ8vdXjHsnvWg0h7f3OXhVd0LFSMT__WUXfY2JnFl97uafZ8Tp7zHrZwT0K$=
    for graphic product...

    ATTN...WFO...FGF...BIS...

    LAT...LON 47490170 48010221 48550136 48169827 47599645 47109631
    46469656 46429699 46749923 46970009 47490170=20



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