• MESO: Mesoscale Discussion 0839

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, June 23, 2018 19:37:21
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    ACUS11 KWNS 231937
    SWOMCD
    SPC MCD 231936
    KSZ000-OKZ000-COZ000-NMZ000-232130-

    Mesoscale Discussion 0839
    NWS Storm Prediction Center Norman OK
    0236 PM CDT Sat Jun 23 2018

    Areas affected...Portions of the southern/central High Plains

    Concerning...Severe potential...Watch possible

    Valid 231936Z - 232130Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Isolated thunderstorms could pose a risk for large hail
    and damaging winds into this evening. Watch issuance could be
    needed.

    DISCUSSION...A few strong/severe storms have developed near the
    Palmer Divide eastward into northwest Kansas this afternoon, amidst
    an environment characterized by favorable effective shear, but
    modest boundary-layer moisture (e.g., upper 40s/lower 50s dew
    points). Still, sufficient mixed-layer buoyancy exists for isolated multicells/splitting supercells, capable of large hail and damaging
    winds. If a few cells continue to organize and evolve southeastward
    into improved storm-relative flow and higher dew points, an
    increasing severe threat would likely evolve, perhaps in the form of
    a small convective complex. As such, convective trends are being
    monitored for possible watch issuance.

    ..Picca/Thompson.. 06/23/2018

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

    ATTN...WFO...DDC...GLD...AMA...PUB...BOU...ABQ...

    LAT...LON 37380089 36610234 36490345 36810384 37220401 37960403
    38610412 39390414 39510396 39630343 39660210 39520114
    39030067 38040046 37380089



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