• MESO: Mesoscale Discussion 1794

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Aug 2 17:44:32 2024
    ACUS11 KWNS 021744
    SWOMCD
    SPC MCD 021743=20
    VAZ000-NCZ000-WVZ000-SCZ000-TNZ000-GAZ000-ALZ000-021945-

    Mesoscale Discussion 1794
    NWS Storm Prediction Center Norman OK
    1243 PM CDT Fri Aug 02 2024

    Areas affected...portions of the Southeast and southern Appalachians

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

    Valid 021743Z - 021945Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Scattered strong to occasional severe storms evolving
    along previous outflow may pose a risk for isolated damaging gusts
    this afternoon. Confidence in storm organization is low, and a WW is
    not expected.

    DISCUSSION...As of 1740 UTC, regional radar and visible imagery
    showed several clusters of strong to occasional severe thunderstorms
    evolving across parts of the Southeast and southern Appalachians.
    Over the past 2 hours, these storms have intensified along previous
    outflow boundaries across northern AL and a weak MCV over TN/VA/NC
    from prior convection. Weak ascent ahead of a broad central US
    trough should continue to support additional storm development
    through this afternoon. Robust diurnal heating and dewpoints in the
    70s F are supporting 1500-2000 J/kg of MLCAPE. Vertical shear is not particularly robust, generally less than 20 kt. However, some slight
    mid-level enhancement has been noted on area VADs ahead of the MCV
    across western NC and VA. Given the moderate buoyancy but limited
    deep-layer shear, storm organization should be confined to stronger
    pulse-type updrafts with microburst potential. Isolated strong to
    occasionally severe gusts are possible with the more robust cores
    through this afternoon. However, given the limited potential for
    storm organization, confidence in the need for a WW is low.

    ..Lyons/Hart.. 08/02/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!87pBS0qvzC2IyUqB2Ezjw4lD-bz6GF5ywRhAxfBfwswe7Y6mfDoZ_NCKFeQZnJI8NBNrORkeW= o5D5aZqmTgBN68SfGw$ for graphic product...

    ATTN...WFO...RNK...RLX...GSP...MRX...FFC...BMX...HUN...

    LAT...LON 34898172 34498319 34258420 33898580 33948655 34128683
    34388683 34808613 35178503 36458296 37468185 37358112
    36648051 35968066 35128127 34898172=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)