• MESO: Mesoscale Discussion 0623

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, June 02, 2018 14:13:20
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    ACUS11 KWNS 021413
    SWOMCD
    SPC MCD 021412
    ILZ000-MOZ000-021615-

    Mesoscale Discussion 0623
    NWS Storm Prediction Center Norman OK
    0912 AM CDT Sat Jun 02 2018

    Areas affected...southern and eastern Missouri into parts of
    southwest Illinois

    Concerning...Severe Thunderstorm Watch 149...

    Valid 021412Z - 021615Z

    The severe weather threat for Severe Thunderstorm Watch 149
    continues.

    SUMMARY...Limited severe risk persists across parts of central and
    southern Missouri within WW 149. Limited risk for hail/wind also
    appears evident across eastern Missouri and into southwest Illinois,
    though new for a new/downstream watch appears low at this time.

    DISCUSSION...Latest radar loop shows a small cluster of stronger
    convection crossing the Hickory/Polk county vicinity of southwest
    Missouri, near the advancing cold front. With ample instability
    ahead of this cluster, some risk for a locally damaging wind gust
    and/or marginal hail persists.

    Farther east, a semi-organized band of storms is moving
    east-southeast across eastern Missouri, roughly along a warm frontal
    zone that extends east-southeast into southern Illinois. With an
    axis of moist air along the boundary, and some early heating that
    has begun to boost CAPE values, this cluster of storms may remain semi-organized, and persist for the next few hours. Deep-layer
    shear remains relatively weak -- which should limit severe risk to
    some degree, and thus at this time a WW does not appear to be
    required. However, we will continue to monitor destabilization
    along the warm front and associated convective trends this morning.

    ..Goss.. 06/02/2018

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

    ATTN...WFO...PAH...LSX...SGF...EAX...

    LAT...LON 38379356 38789212 39409143 39079056 38358866 37678870
    37338957 37769156 37439306 36939440 38379356



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