• MESO: Mesoscale Discussion 0420

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Apr 24 12:30:06 2021
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    ACUS11 KWNS 241229
    SPC MCD 241229=20

    Mesoscale Discussion 0420
    NWS Storm Prediction Center Norman OK
    0729 AM CDT Sat Apr 24 2021

    Areas affected...southeast Alabama into southwest Georgia and parts
    of the Florida Panhandle

    Concerning...Tornado Watch 106...

    Valid 241229Z - 241400Z

    The severe weather threat for Tornado Watch 106 continues.

    SUMMARY...Damaging gusts or a brief tornado remain possible this
    morning, primarily from southeast Alabama into far southwest

    DISCUSSION...A southwest-northeast oriented section of a squall line
    is currently moving across southeast AL, and will soon move into GA.
    Surface analysis shows 65 F + dewpoints near and south of this
    squall line, with drier air currently over much of southern GA and
    northern FL. The 12Z TLH sounding shows only a few hundred J/kg
    MLCAPE with a 64 F dewpoint, but an impressive hodograph clearly
    favorable for supercells given a surface-based effective parcel.

    Continued 40-50 kt southwesterly 850 mb flow will aid theta-e
    advection this morning ahead of the squall line, which may support a wind/tornado threat over GA in a few hours. Isolated severe reports
    remain possible with the trailing portion of the line into the FL
    Panhandle, where dewpoints are in the upper 60s F, but training
    echoes may result in undercutting outflow.

    ..Jewell.. 04/24/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!okF_B0g1LxlGJUkbvF8JjwAFBORDbuofD9GBv4e620QUT0qX6L0lkXnS_rw4FfO6tapf8EYr$=
    for graphic product...


    LAT...LON 30808301 30478616 31288623 31498597 31678588 31928300

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