• MESO: Mesoscale Discussion 0726

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu May 9 09:27:26 2024
    ACUS11 KWNS 090927
    SWOMCD
    SPC MCD 090926=20
    SCZ000-GAZ000-NCZ000-TNZ000-ALZ000-091130-

    Mesoscale Discussion 0726
    NWS Storm Prediction Center Norman OK
    0426 AM CDT Thu May 09 2024

    Areas affected...Southern Tennessee...Northeast Alabama...Northern
    Georgia

    Concerning...Tornado Watch 215...

    Valid 090926Z - 091130Z

    The severe weather threat for Tornado Watch 215 continues.

    SUMMARY...A threat for wind damage, hail and a tornado or two is
    expected to persist early this morning from southern Tennessee and
    northeast Alabama east-southeastward across much of northern
    Georgia. Weather watch issuance may be needed as the convection
    approaches the eastern edge of WW 215.

    DISCUSSION...The latest hi-resolution radar imagery from Huntsville,
    AL shows a linear MCS, with several embedded severe storms, located
    from southeast Tennessee southwestward into far northern Alabama.
    Ahead of the MCS, the RAP has MLCAPE generally in the 1500 to 2000
    J/kg range. The WSR-88D VWP from Huntsville, AL has 0-6 km shear
    near 45 knots, suggesting that supercells and bowing line segments
    will be possible. The wind-damage potential should be greatest along
    the leading edge of the stronger line segments. In addition, VWPs
    have 0-3 storm-relative helicity near 250 m2/s2, suggesting that an
    isolated tornado threat will be possible with supercells, especially
    with cells that interact with the outflow boundary. The threat
    should continue to persist as the MCS moves along either side of the
    outflow boundary, and across the remainder of northeast Alabama and
    northern Georgia later this morning.

    ..Broyles.. 05/09/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-CVO9eAEZ8sqgbci0T9wVs9yGLp5nOZPtXx5JB--0LyAsoA9WwrM9-EoDeFK_OPBLUaSEKIaw= RNPt9jqGFyV4PNBcMM$ for graphic product...

    ATTN...WFO...CAE...GSP...MRX...FFC...OHX...BMX...HUN...

    LAT...LON 34828690 34448677 34018611 33348362 33338278 33658251
    34128256 34498295 34898390 35488559 35458631 35128672
    34828690=20


    =3D =3D =3D
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