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  • MESO: Mesoscale Discussion 2122

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Sep 27 04:47:02 2024
    ACUS11 KWNS 270446
    SWOMCD
    SPC MCD 270446=20
    NCZ000-SCZ000-FLZ000-GAZ000-270645-

    Mesoscale Discussion 2122
    NWS Storm Prediction Center Norman OK
    1146 PM CDT Thu Sep 26 2024

    Areas affected...northern Florida into the Carolinas

    Concerning...Tornado Watch 686...687...

    Valid 270446Z - 270645Z

    The severe weather threat for Tornado Watch 686, 687 continues.

    SUMMARY...The environment remains conditionally favorable for
    supercells producing tornadoes, primary over southeast Georgia into
    South Carolina.

    DISCUSSION...Unstable air continues to wrap northwestward ahead of
    Helene, with the high theta-e air mass now inland across eastern SC
    and GA. Very strong gusts continue into the Jacksonville FL area
    within the well-mixed boundary layer where temperatures are in the
    80s F. Dewpoints are also averaging 78- 80 F along the coast farther
    north.

    While severe cell coverage has decreased compared to a few hours
    ago, conditions remain quite favorable for tornadoes should
    additional bands of storms form. This is quite possible through
    tonight as low-level flow remains confluent. In addition, the high
    dewpoints will easily favor development with relatively minimal
    lift. As such, the tornado watch will continue from GA into southern
    NC for some time. Areas to the south into central FL should
    eventually see a waning threat as convergence weakens due to the
    system pulling rapidly north.

    ..Jewell.. 09/27/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4AMUp3lnJ923qGKnx6huB1tYE3CUy2yhz5RYuCj799LVvWpt1Z22KfRvhf2SN777qCG2H5mlw= Sw_yPiOH-RRgClg-wc$ for graphic product...

    ATTN...WFO...RAH...ILM...CHS...CAE...MLB...GSP...TBW...JAX...
    FFC...TAE...

    LAT...LON 30798131 29768122 28258158 27838200 27628254 27748280
    28178285 28728277 29328280 29878249 30448244 30998268
    31528316 32148319 32758283 33418224 34238159 34678111
    34888007 34767914 34477855 33857838 33507889 33057918
    32557994 32148048 31728102 30798131=20


    =3D =3D =3D
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