• MESO: Mesoscale Discussion 1189

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, July 29, 2018 00:38:24
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    ACUS11 KWNS 290038
    SWOMCD
    SPC MCD 290038
    NEZ000-SDZ000-WYZ000-290215-

    Mesoscale Discussion 1189
    NWS Storm Prediction Center Norman OK
    0738 PM CDT Sat Jul 28 2018

    Areas affected...eastern Wyoming through far western Nebraska

    Concerning...Tornado Watch 319...

    Valid 290038Z - 290215Z

    The severe weather threat for Tornado Watch 319 continues.

    SUMMARY...Threat for isolated large hail, downburst winds and a
    tornado or two will persist through 02Z, mainly from southeast
    Wyoming into western Nebraska.

    DISCUSSION...Isolated storms including supercells continue to
    advance southeast through eastern WY and far western NE. The surface
    layer across the northern part of WW 319 including northeast WY has
    stabilized due to the influence of several rounds of earlier storms.
    Greatest severe threat next couple hours is expected across
    southeast WY into western NE where the atmosphere is moderately
    unstable with 1500 J/kg MLCAPE, but storm coverage will remain
    sparse. Effective bulk shear from 45-55 kt will continue to support
    supercell structures capable of large hail next couple hours. Though
    a tornado or two remains possible in the near term, a stabilizing
    boundary layer suggests this window is gradually closing.

    ..Dial.. 07/29/2018

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

    ATTN...WFO...UNR...CYS...RIW...

    LAT...LON 44410490 42840300 41430272 41060419 41470548 43040650
    44270632 44410490



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