• MESO: Mesoscale Discussion 0558

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, May 28, 2018 22:55:26
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    ACUS11 KWNS 282255
    SWOMCD
    SPC MCD 282254
    KSZ000-NEZ000-COZ000-290030-

    Mesoscale Discussion 0558
    NWS Storm Prediction Center Norman OK
    0554 PM CDT Mon May 28 2018

    Areas affected...Eastern Colorado...Northwest Kansas...Far
    South-central Nebraska

    Concerning...Tornado Watch 127...

    Valid 282254Z - 290030Z

    The severe weather threat for Tornado Watch 127 continues.

    SUMMARY...The main supercell-related tornado/large hail potential
    within Tornado Watch 127 should be focused across northeast Colorado
    areas along/north of I-70 through early evening, with sporadic hail
    otherwise the most common hazard across northwest Kansas. Tornado
    Watch 127 continues until 03Z.

    DISCUSSION...A persistent complex of regenerative convection
    continues to backbuild west/southwestward across northwest Kansas
    into areas along/south of I-70, with fresh outflow steadily
    progressing west/southwestward across northwest Kansas as far
    southwest Nebraska into northeast Colorado. Sporadic hail/locally
    damaging winds remain possible across northwest Kansas especially
    near the outflow and just north atop the increasingly extensive
    surface cold pool centered near/just west of Hill City, Kansas per
    22Z analysis.

    A more discrete supercell threat will be focused farther west
    through early evening across northeast Colorado where outflow is
    less prevalent/hostile. Large hail and some tornado risk will exist
    mainly in areas along/north of I-70 through early evening in
    conjunction with 40+ kt effective shear and moderate instability in
    the presence of moist easterly low-level flow.

    ..Guyer.. 05/28/2018

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

    ATTN...WFO...GID...DDC...GLD...PUB...BOU...

    LAT...LON 40280225 39580033 39979847 38539981 38450186 38910337
    40040340 40280225



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