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  • MESO: Mesoscale Discussion 0181

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Feb 23 01:59:31 2023
    ACUS11 KWNS 230159
    SWOMCD
    SPC MCD 230159=20
    NHZ000-MAZ000-VTZ000-NYZ000-230800-

    Mesoscale Discussion 0181
    NWS Storm Prediction Center Norman OK
    0759 PM CST Wed Feb 22 2023

    Areas affected...Portions of central/eastern New York into New
    England

    Concerning...Winter mixed precipitation=20

    Valid 230159Z - 230800Z

    SUMMARY...Heavy snow rates around an inch per hour are possible
    within the Adirondack vicinity into parts of New Hampshire and
    Vermont. South of the heavier snowfall, freezing rain and sleet will
    be possible.

    DISCUSSION...A low-amplitude shortwave trough within the Upper
    Midwest will continue to move northeast this evening. This feature
    is expected to lose some amplitude/definition with time. Based on
    KBUF and KTYX radar imagery, moderate to heavy snow is developing in
    the vicinity of Lake Ontario as warm advection aloft increases with
    the approach of the shortwave. The expectation is for this band of precipitation to continue east and north over the next several
    hours. Snowfall rates of around an inch per hour (with locally
    higher rates up to 1.5 inches per hour) will be possible from
    roughly the Adirondack region into New Hampshire/Vermont. Farther
    south, surface observations and dual-pol analysis show a transition
    zone to a mix of freezing rain and sleet. This transition zone
    should shift east and north along with the strongest zone of warm
    advection.

    ..Wendt.. 02/23/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6K3fi_jdDDr1V-MX8VW9GHbwj_cx1OFJskA0AEXBXWRjUZpgBpGV2C7aoNtSAuZCYNHN04HNz= PdLaCArPX1w37eBqfs$ for graphic product...

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

    LAT...LON 44097607 44657493 44857273 44717148 44217105 43197151
    42817168 42427230 42467431 42697581 43007712 43357724
    44097607=20


    =3D =3D =3D
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