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  • MESO: Mesoscale Discussion 1665

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, November 27, 2018 02:35:08
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    ACUS11 KWNS 270135
    SWOMCD
    SPC MCD 270134
    MEZ000-NHZ000-VTZ000-NYZ000-270730-

    Mesoscale Discussion 1665
    NWS Storm Prediction Center Norman OK
    0734 PM CST Mon Nov 26 2018

    Areas affected...portions of northeast NY...northern and central
    VT/NH and western ME

    Concerning...Heavy snow

    Valid 270134Z - 270730Z

    SUMMARY...Heavy snow, with snowfall rates near 1 inch per hour, is
    expected overnight across parts of northeast NY into central and
    northern VT and NH and western ME. The heaviest snowfall is expected
    to begin after 03z.

    DISCUSSION...Heavy snow is expected tonight across portions of
    northeast NY into central and northern VT/NH and western ME. The
    heaviest snowfall rates will generally be confined to the
    Adirondacks in northeast NY and elevations above around 1000 feet in central/northern VT/NH and western ME. Lower elevations in the
    vicinity of the Champlain Valley will struggle to fall below
    freezing and may see more rain or a rain/snow mix for much of the
    overnight period. Snowfall rates are expected to increase over the
    next couple of hours and persist into Tuesday morning.

    Where heavy snow is expected, forecast RAP soundings indicate strong
    lift through a deep sub-freezing, saturated layer with steep lapse
    rates through the dendritic growth zone. East-facing slopes also
    could experience upslope enhancement of snowfall rates. In general,
    rates approaching 1 in/hr will be common, though some areas, could
    see rates up to 2 in/hr in heavier snow bands. The highest snowfall
    rates are expected after 03z this evening, with a peak in rates
    around 06-09z.

    ..Leitman.. 11/27/2018

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

    ATTN...WFO...GYX...BTV...ALY...BUF...

    LAT...LON 45507118 45607074 45737041 45517005 45147000 44617017
    44247037 43807096 43497226 43347382 43467467 43717514
    44067529 44667450 44957383 45007300 45087184 45507118



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