• MESO: Mesoscale Discussion 0557

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, May 28, 2018 19:40:29
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    ACUS11 KWNS 281940
    SWOMCD
    SPC MCD 281939
    COZ000-SDZ000-NEZ000-WYZ000-282115-

    Mesoscale Discussion 0557
    NWS Storm Prediction Center Norman OK
    0239 PM CDT Mon May 28 2018

    Areas affected...The Central High Plains/Front Range of WY and CO

    Concerning...Severe potential...Watch likely

    Valid 281939Z - 282115Z

    Probability of Watch Issuance...80 percent

    SUMMARY...Scattered strong/severe thunderstorms will be noted across
    the High Plains/Front Range of WY/CO. Large hail is the primary
    risk, although a tornado can not be ruled out.

    DISCUSSION...Early-afternoon water-vapor imagery depicts a
    well-defined short-wave trough ejecting across the Four Corners into
    central CO. Large-scale forcing for ascent is expected to aid an
    arcing band of convection that should intensify over the higher
    terrain then spread across the Front Range/High Plains. While
    boundary-layer clouds have been stubborn to erode north of the
    Palmer Divide, it appears substantially more breaks in this cloud
    deck will soon enhance surface heating/buoyancy. Severe convection
    with large hail is the primary risk.

    ..Darrow/Hart.. 05/28/2018

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

    ATTN...WFO...UNR...PUB...BOU...CYS...

    LAT...LON 38390511 39560551 43070573 43120402 40970357 38460373
    38390511



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