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  • MESO: Mesoscale Discussion 0039

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, January 20, 2019 06:47:26
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    ACUS11 KWNS 200547
    SWOMCD
    SPC MCD 200546
    MEZ000-NHZ000-VTZ000-MAZ000-NYZ000-200945-

    Mesoscale Discussion 0039
    NWS Storm Prediction Center Norman OK
    1146 PM CST Sat Jan 19 2019

    Areas affected...Northern NY...VT...NH...Far Southwest ME

    Concerning...Heavy snow

    Valid 200546Z - 200945Z

    SUMMARY...Widespread snowfall rates from 1-2"/hr are anticipated
    with localized rates above 2"/hr possible.

    DISCUSSION...A maturing mid-latitude cyclone continues to move
    eastward across the OH Valley with a large area of moderate to
    occasionally heavy snow ahead of this system across PA and much of
    NY. Expectation is for this large precipitation shield to expand
    northward into northern NY, VT, and NH over the next several hours.
    At the same time, low-level winds within the warm conveyor are
    expected to strengthen slightly as the system matures, resulting in
    an increase of the warm-air advection ahead of the cyclone.
    Consequently, a large area of moderate to heavy snow will develop
    from northern NY eastward across VT, NH, and into far southwest ME.
    Given the strength of the warm-air advection/frontogenesis,
    widespread snowfall rates of 1-2"/hr are anticipated with localized
    areas experiencing rates above 2"/hr.

    ..Mosier.. 01/20/2019

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

    ATTN...WFO...GYX...BOX...BTV...ALY...BGM...BUF...

    LAT...LON 44407585 44897516 45017434 45037195 44827114 44487075
    43947074 43287089 42977128 42777181 42657234 42617353
    42867656 43217750 43817691 44407585



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