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  • MESO: Mesoscale Discussion 0193

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, March 13, 2019 13:20:32
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 131220
    SWOMCD
    SPC MCD 131220
    SDZ000-NEZ000-WYZ000-COZ000-131615-

    Mesoscale Discussion 0193
    NWS Storm Prediction Center Norman OK
    0720 AM CDT Wed Mar 13 2019

    Areas affected...Southwest/West-Central WY...Far Northwest NE...Far
    Southwest SD

    Concerning...Heavy snow

    Valid 131220Z - 131615Z

    SUMMARY...Widespread heavy snowfall is expected to develop from
    southwest WY into southwest SD and far northwest NE. Snowfall rates
    over 2"/hr are expected.

    DISCUSSION...Observations across southwest/west-central WY and
    adjacent portions of far southwest SD and far northwest NE have
    sporadically reported moderate snowfall with the exception of CPR,
    which has reported heavy snow for the past several hours.

    Expectation is for heavy snow to become more widespread in this
    region over the next several hours as the upper system approaches
    from the southwest and strengthens frontogenesis over the area.
    Anticipated progression of the system will result in this band
    remaining in place for much of the day. The heaviest snowfall will
    likely begin in the next few hours across southwest WY before
    gradually transitioning northeastward. Snowfall rates in excess of
    1"/hr will be common with instances of 2"/hr to 3"/hr possible in
    isolated areas.

    Strong surface winds are also anticipated as the overall system
    matures and the surface low deepens this afternoon. Combination of
    the heavy snow and strong winds will result in blizzard conditions
    beginning as early as late morning.

    ..Mosier.. 03/13/2019

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

    ATTN...WFO...LBF...UNR...BOU...CYS...RIW...

    LAT...LON 44340179 44310388 43810560 43300664 42250782 41280767
    40940647 41280475 42330365 42830236 43480147 44340179



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