• MESO: Mesoscale Discussion 1949

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Aug 11 20:32:34 2023
    ACUS11 KWNS 112032
    SWOMCD
    SPC MCD 112031=20
    MOZ000-IAZ000-KSZ000-NEZ000-112200-

    Mesoscale Discussion 1949
    NWS Storm Prediction Center Norman OK
    0331 PM CDT Fri Aug 11 2023

    Areas affected...southeast Nebraska...northeast Kansas into far
    southwest Iowa and northwest Missouri

    Concerning...Severe Thunderstorm Watch 625...

    Valid 112031Z - 112200Z

    The severe weather threat for Severe Thunderstorm Watch 625
    continues.

    SUMMARY...Isolated strong storms will continue southeastward into
    northwest MO the next few hours. Isolated large hail and strong
    gusts are possible.

    DISCUSSION...Recent ACARS soundings over the Kansas City vicinity
    indicated quite a bit of dry air above the moist near-surface
    boundary-layer. Despite MLCAPE greater than 2000 J/kg and effective
    shear greater than 35-40 kt across the area, this may explain the
    recent weakening trend of convection, especially given weak ascent
    through this drier layer. Nevertheless, MLCINH has decreased across
    much of the area and low-level convergence will persist. Additional
    storms may develop with time behind ongoing convection, but this is
    unclear. An isolated large to very large hail risk will continue
    with any more intense cells that are able to develop and/or be
    maintained with southeast extent across northwest MO.

    ..Leitman.. 08/11/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4BDBosLDrBugiMaYD8lPvLcRt6UPiXGL_xCNRbtQd8PnVEEm77qjxsqB2HX84wU1NJ6QoNZ7G= CV0BqeXrUIRSSt4mp0$ for graphic product...

    ATTN...WFO...DMX...EAX...OAX...TOP...

    LAT...LON 40989485 40759372 40069348 39319392 38899445 38839526
    38989625 39299686 40229673 40629660 41039620 40989485=20


    =3D =3D =3D
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