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  • MESO: Mesoscale Discussion 0720

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, June 13, 2018 07:26:14
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    ACUS11 KWNS 130726
    SWOMCD
    SPC MCD 130725
    KSZ000-COZ000-131000-

    Mesoscale Discussion 0720
    NWS Storm Prediction Center Norman OK
    0225 AM CDT Wed Jun 13 2018

    Areas affected...East-central Colorado

    Concerning...Severe potential...Watch unlikely

    Valid 130725Z - 131000Z

    Probability of Watch Issuance...20 percent

    SUMMARY...An isolated severe threat will likely continue for several
    more hours across parts of east-central Colorado. Large hail and a
    few strong wind gusts will be possible. The threat is expected to
    remain isolated and a weather watch will probably not be needed.

    DISCUSSION...Radar imagery shows a couple of supercells have
    developed along the eastern edge of the Palmer Divide. The storms
    appear to have initiated due to an outflow boundary that is
    interacting with the higher terrain. The storms are developing on
    the western edge of a narrow corridor of moderate instability with
    the RAP estimating MLCAPE in the 1500 to 2500 J/kg range. In
    addition, the Pueblo WSR-88D VWP is showing 0-6 km shear of 40-45 kt
    which will be supportive of supercell structures. Large hail will be
    the primary threat although a few strong wind gusts will also be
    possible. Storm development is forecast to take place eastward along
    the instability gradient and may impact areas near the Colorado and
    Kansas state-line later tonight, especially as low-level flow
    increases across the High Plains.

    ..Broyles/Thompson.. 06/13/2018

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

    ATTN...WFO...GLD...PUB...BOU...

    LAT...LON 38520456 38470373 38460308 38570193 38680154 38870133
    39220129 39430149 39620189 39620328 39530459 38860494
    38520456



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