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  • MESO: Mesoscale Discussion 0161

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Feb 27 16:12:36 2024
    ACUS11 KWNS 271612
    SWOMCD
    SPC MCD 271612=20
    NEZ000-SDZ000-KSZ000-COZ000-271915-

    Mesoscale Discussion 0161
    NWS Storm Prediction Center Norman OK
    1012 AM CST Tue Feb 27 2024

    Areas affected...Eastern CO to northern NE

    Concerning...Snow Squall=20

    Valid 271612Z - 271915Z

    SUMMARY...A short-duration moderate to heavy snow band that is
    effectively producing sporadic snow squall conditions should spread east-southeast into early afternoon across parts of eastern Colorado
    and northern Nebraska.

    DISCUSSION...700-mb frontogenetical forcing for ascent has supported
    a narrow band of moderate to heavy snow across a portion of the
    Denver Metro Area northeastward into north-central NE, per surface
    observations and road cameras. The northeast extent of this band is
    well removed from the surface cold front that is marching
    south-southeast from IA to north KS and east-central CO. Strong,
    post-frontal gradient winds are combining with the narrow snow band
    to produce snow squall-like conditions with substantial reduction in
    visibility despite the mesoanalysis snow squall parameter holding
    less than 0.1. The stronger 700-mb frontogenesis is largely expected
    to shift east in NE and gradually weaken while shifting southeast in
    eastern CO. This may yield breaks in the ongoing thin band, a
    scenario supported by recent RRFS guidance.

    ..Grams.. 02/27/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6ghrqRHv_4RqhhbaOK1vMsNoqdUVcXmGTBebQgJ0rPJNmmbeztheUFioY8LplG8DjxIZVfYYg= e2XHa2rIrJ_3Uxi3mA$ for graphic product...

    ATTN...WFO...FSD...OAX...GID...LBF...GLD...PUB...BOU...

    LAT...LON 40220439 40670277 42470020 43039938 43249835 42959772
    42399785 41349895 40180157 39480232 38740295 38480341
    38500383 38770443 39260477 40220439=20


    =3D =3D =3D
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