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  • MESO: Mesoscale Discussion 0032

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, January 20, 2019 00:24:55
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 192324
    SWOMCD
    SPC MCD 192324
    PAZ000-MDZ000-NYZ000-WVZ000-VAZ000-OHZ000-INZ000-200230-

    Mesoscale Discussion 0032
    NWS Storm Prediction Center Norman OK
    0524 PM CST Sat Jan 19 2019

    Areas affected...northern Ohio... much of Pennsylvania... northern
    Maryland... far northeastern West Virginia... far southwestern New
    York

    Concerning...Heavy snow

    Valid 192324Z - 200230Z

    SUMMARY...Moderate to heavy snowbands continue to overspread the
    region, with widespread 1-2 inch per hour snowfall rates likely.

    DISCUSSION...Regional radar shows moderate to heavy snowbands
    continuing over portions of northern Ohio, and developing/spreading
    into portions of Pennsylvania and northern Maryland. Locations where
    these snowbands have setup are currently experiencing snowfall rates
    of 1-2 inches per hour.

    These observational trends are expected to continue for the next few
    hours. Strong mid-level frontogenetical forcing is resulting in
    broad vertical ascent over the region. RAP soundings indicate
    moderate vertical motion through the dendritic growth zone, helping
    to enhance snowfall rates. With time, areas of northern Maryland and
    southern Pennsylvania should transition to rain, but could
    experience some brief freezing rain as warm air advection aloft
    outpaces warming at the surface.

    ..Karstens.. 01/19/2019

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

    ATTN...WFO...PHI...BGM...BUF...CTP...LWX...PBZ...CLE...ILN...
    IWX...IND...

    LAT...LON 40978436 40578483 40108488 39838435 40078327 40818102
    40987990 40897958 40557928 40127918 39487923 39357854
    39467742 39747625 40077607 40777598 41847592 42287695
    42287881 41968038 41768136 41638207 41448289 41228374
    40978436



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