• MESO: Mesoscale Discussion 1450

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 7 05:50:00 2023
    ACUS11 KWNS 070549
    SWOMCD
    SPC MCD 070549=20
    NEZ000-WYZ000-070645-

    Mesoscale Discussion 1450
    NWS Storm Prediction Center Norman OK
    1249 AM CDT Fri Jul 07 2023

    Areas affected...far east-central WY into western NE

    Concerning...Severe Thunderstorm Watch 456...

    Valid 070549Z - 070645Z

    The severe weather threat for Severe Thunderstorm Watch 456
    continues.

    SUMMARY...Isolated strong gusts and hail may persist another couple
    of hours across WW 456 as storms move out of far east-central
    Wyoming and across western Nebraska.

    DISCUSSION...A cluster of storms moving over extreme east-central
    WY, along with another cluster over the northwest NE Panhandle will
    continue to shift east/southeast the next few hours. Latest radar
    trends have shown a gradual weakening trend in convection, though a
    few stronger cores are still evident. While boundary-layer
    inhibition has increased, region VWP data indicate favorable
    vertical shear, and a modest southerly low-level jet, along with
    1000-1500 J/kg MLCAPE. This should be sufficient to sustain strong
    convection for at least a couple more hours. This activity should
    move on the fringes of steeper midlevel lapse rates, supporting a
    continued risk for hail. The cooling boundary-layer will likely
    limit severe gust potential, but a few strong gusts are still
    possible. Given weakening instability and increasing inhibition with
    eastward extent, a downstream watch is not anticipated.

    ..Leitman.. 07/07/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9zmBColIkNXFX9njx2wkHX7ncZZq0HqRZVKKYXcei2V5EjJDf5VCliJd4u8nVwymixfUurWDS= BCpqz7cVqT-9lkHpt8$ for graphic product...

    ATTN...WFO...LBF...CYS...

    LAT...LON 42720314 42680160 41920082 41480085 41240170 41280262
    41450382 41760428 42130456 42660448 42720314=20


    =3D =3D =3D
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