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  • MESO: Mesoscale Discussion 0157

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, March 04, 2019 04:44:56
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 040344
    SWOMCD
    SPC MCD 040344
    MAZ000-RIZ000-CTZ000-NYZ000-NJZ000-PAZ000-040745-

    Mesoscale Discussion 0157
    NWS Storm Prediction Center Norman OK
    0944 PM CST Sun Mar 03 2019

    Areas affected...Northern New Jersey northeastward into southern
    Massachusetts

    Concerning...Heavy snow

    Valid 040344Z - 040745Z

    SUMMARY...Light to moderate snow from northern New Jersey
    northeastward up the Atlantic coast will increase to heavy snow
    within the next few hours. Snowfall rates may exceed 2 inches per
    hour in the heaviest snow bands.

    DISCUSSION...Composite reflectivity shows increasingly heavy
    precipitation lifting north across New Jersey at 03Z as
    low-to-mid-level frontogenesis strengthens north of a surface low
    currently located near the southeast Virginia coast. As these
    heavier precipitation rates lift into the cold air, snowfall rates
    are expected to increase. At the peak, snowfall rates may exceed 2
    inches per hour in a corridor from near New York City to Providence,
    Rhode Island where slantwise instability will likely enhance
    localized banding.

    The latest high resolution guidance suggests warm air aloft will
    remain mostly offshore, but an eventual transition to freezing rain
    or rain is possible in eastern Long Island and far southeast
    Massachusetts.

    ..Bentley.. 03/04/2019

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

    ATTN...WFO...BOX...OKX...ALY...PHI...

    LAT...LON 40467364 40227396 40037479 40147504 40587510 41287444
    41777386 42227279 42337197 42357121 42227076 42077016
    41916996 41616996 41557031 41467077 41267158 40997186
    40467364



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