• MESO: Mesoscale Discussion 2255

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Dec 9 17:57:21 2025
    ACUS11 KWNS 091757
    SWOMCD
    SPC MCD 091756=20
    MNZ000-NDZ000-092300-

    Mesoscale Discussion 2255
    NWS Storm Prediction Center Norman OK
    1156 AM CST Tue Dec 09 2025

    Areas affected...portions of northern into central Minnesota

    Concerning...Heavy snow=20

    Valid 091756Z - 092300Z

    SUMMARY...Moderate to heavy snow is expected to begin over the next
    few hours. 1 inch/hour snowfall rates are possible.

    DISCUSSION...A surface-850 mb low is beginning to intensify while
    shifting southeastward across ND, which is resulting in increased
    low-level warm-air/moisture advection within a sub-freezing
    troposphere over northern to central MN. A primary band of at least
    light to moderate snow is already in place along the ND/MN border,
    and this band is expected to intensify with increased 850-700 mb
    frontogenesis over central MN over the next several hours. Increased
    saturation of the dendritic growth zone should support widespread
    moderate snowfall rates, but at least a few instances of heavy snow
    are possible, including snowfall rates locally exceeding 1
    inch/hour.

    ..Squitieri.. 12/09/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_oz36ZXJyKvzdzcityi5iHgYhinIMPHyl7P-a1XPcgoAsGJg-oPuNpd92bJr-x83QKSYwLXWO= LcLXAq3vlCtE6v7TUs$ for graphic product...

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

    LAT...LON 47919705 48009693 48069675 48079663 48049635 47949602
    47629508 47199421 46929378 46239305 45759294 45389305
    45229348 45199421 45259516 45429561 45799613 47029686
    47419699 47719709 47919705=20


    =3D =3D =3D
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