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  • MESO: Mesoscale Discussion 0131

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, February 24, 2019 03:52:31
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 240252
    SWOMCD
    SPC MCD 240252
    MIZ000-WIZ000-MNZ000-240815-

    Mesoscale Discussion 0131
    NWS Storm Prediction Center Norman OK
    0852 PM CST Sat Feb 23 2019

    Areas affected...Southeast MN...Central/Northern WI...Western U.P.
    of MI

    Concerning...Heavy snow

    Valid 240252Z - 240815Z

    SUMMARY...Heavy snow will become widespread across the region later
    tonight. Snowfall rates of 1-2" per hour will be possible.

    DISCUSSION...At 0230Z, a deepening cyclone is located over southeast
    IA, with a well-defined band of heavy snow to the north and west of
    the low across eastern NE/western IA into southern MN. As the
    cyclone tracks northeastward, heavy snow rates will develop into
    portions of central/northern WI after 03Z, and eventually into the
    U.P. of Michigan after 06Z. Steep midlevel lapse rates (as observed
    in 00Z OAX sounding and implied by scattered lightning activity
    portions of IA/northern IL/southern WI) along the leading edge of
    the dry slot and intense deep-layer ascent will continue to support
    convective elements within the precipitation shield and result in
    heavy snow rates of 1-2" per hour to the north and west of the
    cyclone track as it moves towards the Great Lakes.

    ..Dean.. 02/24/2019

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

    ATTN...WFO...MQT...GRB...DLH...ARX...MPX...

    LAT...LON 45139279 45429233 46299081 47518787 46948731 46298723
    45578786 44868871 44518952 44239023 44099087 44109137
    44109172 44189201 44399249 44689307 45139279



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