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  • MESO: Mesoscale Discussion 0036

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, January 20, 2019 03:33:54
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 200233
    SWOMCD
    SPC MCD 200233
    CTZ000-NYZ000-NJZ000-PAZ000-200530-

    Mesoscale Discussion 0036
    NWS Storm Prediction Center Norman OK
    0833 PM CST Sat Jan 19 2019

    Areas affected...northern/central Pennsylvania... southern New
    York... northern New Jersey... western Connecticut

    Concerning...Heavy snow

    Valid 200233Z - 200530Z

    SUMMARY...Moderate to heavy snowfall will continue across the region
    with 1-2 inch per hour snowfall rates likely.

    DISCUSSION...Regional radar shows widespread moderate to heavy
    snowfall over an expansive area of the Northeast. The heaviest
    snowfall rates appear mostly confined near the northward-retreating rain/freezing rain/snow line across portions of central Pennsylvania
    and into New Jersey. Some localized banding is evident farther north
    across northern Pennsylvania, and snowfall is beginning to fill in
    and become more expansive across southern New York into Connecticut.


    These radar trends are expected to continue in the near term, with
    gradual enhancement of the snowfall rates across portions of
    southern New York/Connecticut as mid-level warm-air
    advection/frontogenetical forcing persist while the system continues
    to lift northeast. RAP soundings continue to indicate the potential
    for vertical motion through the dendritic growth zone across much of
    the region. Widespread 1-2 inch per hour snowfall rates are likely, particularly along and north of the precipitation-type transition
    zone. Some freezing rain will also remain possible in this
    northward-evolving transition zone.

    ..Karstens.. 01/20/2019

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

    ATTN...WFO...OKX...ALY...PHI...BGM...BUF...CTP...PBZ...CLE...

    LAT...LON 40187836 40597887 41087949 41278038 41868048 42197980
    42577864 42587610 42207478 41427315 41067303 40837390
    40557513 40107604 39997685 40017762 40187836



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