• MESO: Mesoscale Discussion 1968

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Aug 21 21:43:08 2024
    ACUS11 KWNS 212143
    SWOMCD
    SPC MCD 212142=20
    AZZ000-212315-

    Mesoscale Discussion 1968
    NWS Storm Prediction Center Norman OK
    0442 PM CDT Wed Aug 21 2024

    Areas affected...portions of southern Arizona

    Concerning...Severe potential...Watch unlikely=20

    Valid 212142Z - 212315Z

    Probability of Watch Issuance...20 percent

    SUMMARY...A few instances of severe hail/wind gusts are possible
    through the remainder of the afternoon and evening. The severe
    threat should remain isolated, and a WW issuance is not anticipated.

    DISCUSSION...Pulse-cellular storms have been percolating in
    intensity over the past few hours with approach of peak afternoon
    heating. These storms are developing atop a low-level airmass
    characterized by steep low-level lapse rates. Given relatively weak
    vertical wind shear in place, storms will likely remain
    pulse-cellular in nature, though a few multicell clusters are
    possible. Severe gusts are the main threat, though a couple
    instances of large hail may also accompany the strongest,
    longest-lived storm cores.

    ..Squitieri/Gleason.. 08/21/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-oF3lBgYCaHKhJIJGoCH2SGszbsfmuYX2PrGnilimHIt1mA8RbwVqbrSb6LiogTdMvyzcR70Z= VAR4hiPXT2B_1UWNv8$ for graphic product...

    ATTN...WFO...TWC...PSR...

    LAT...LON 31231125 32191173 33041210 33561201 33541125 33221064
    32690992 32150936 31550924 31230931 31231125=20


    =3D =3D =3D
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