• MESO: Mesoscale Discussion 1493

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jul 11 01:54:07 2023
    ACUS11 KWNS 110154
    SWOMCD
    SPC MCD 110153=20
    KSZ000-NEZ000-110400-

    Mesoscale Discussion 1493
    NWS Storm Prediction Center Norman OK
    0853 PM CDT Mon Jul 10 2023

    Areas affected...parts of south central Nebraska and northwestern
    into central Kansas

    Concerning...Severe Thunderstorm Watch 472...

    Valid 110153Z - 110400Z

    The severe weather threat for Severe Thunderstorm Watch 472
    continues.

    SUMMARY...A couple of ongoing thunderstorm clusters may consolidate
    north of the Russell KS vicinity through 10 PM-Midnight CDT, and
    perhaps eventually lead to increasing potential for strong wind
    gusts.

    DISCUSSION...The persistent cluster of storms north of Goodland,
    close to the northern periphery of the warmer and more strongly
    capping elevated mixed-layer air, has developed an MCV,
    strengthening rear inflow and a southeastward surging cold pool.=20
    Higher low-level moisture content, however, is still confined to a
    narrow corridor along a remnant front west of Dodge City through
    Goodland, beneath the warmer air aloft as radiational cooling begins
    to increase inhibition for mixed-layer parcels further.=20=20

    During the next few hours, though, a gradual eastward advection of
    the low-level moisture is forecast into the vicinity of the thermal
    gradient along the northeastern periphery of the warmer air aloft.=20
    It appears that this may allow for increasingly unstable updraft
    inflow into consolidating convection from the northwest and north,
    across the Phillipsburg, Smith Center, Hill City, and Russell KS
    vicinity, leading to potential for further upscale convective growth
    and intensification through 03-05Z.

    ..Kerr.. 07/11/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-6luQb_18uMdGO2B_RkB-RFxj9W5j0Zh6-oEfQWi3dFoqPCIQ6yaaXHhG11FAO7ElavPax7Rf= IVOnGBx73cagSqDsWQ$ for graphic product...

    ATTN...WFO...ICT...GID...DDC...GLD...

    LAT...LON 40249989 40179924 40159837 39189802 37809863 38600049
    39230059 39619992 40249989=20


    =3D =3D =3D
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