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  • MESO: Mesoscale Discussion 1752

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jul 30 23:27:26 2024
    ACUS11 KWNS 302327
    SWOMCD
    SPC MCD 302327=20
    GAZ000-ALZ000-310130-

    Mesoscale Discussion 1752
    NWS Storm Prediction Center Norman OK
    0627 PM CDT Tue Jul 30 2024

    Areas affected...northern into central Georgia and adjacent portions
    of eastern Alabama

    Concerning...Severe Thunderstorm Watch 574...

    Valid 302327Z - 310130Z

    The severe weather threat for Severe Thunderstorm Watch 574
    continues.

    SUMMARY...A cluster of thunderstorms may overspread much of the
    Greater Atlanta metro area through 9-10 PM EDT, accompanied by
    strong to locally severe wind gusts.

    DISCUSSION...A downburst associated with collapsing convection
    produced wind gusts to 54 kt at Chattanooga Metropolitan airport at
    2216Z, where 2 hourly surface pressure rises up to at least 3.8 mb
    were recorded in the 23Z surface observations. This is within a
    broader cold pool advancing across the higher terrain of
    southeastern Tennessee, western North Carolina and northeastern
    Georgia.=20=20

    Near the leading edge of the outflow associated with the stronger
    downburst, convection has re-intensified some in a small cluster.=20
    Aided by wind profiles including light westerly low-level flow
    beneath 20-30 kt north-northwesterly mid/upper flow, modest
    southwesterly system relative inflow may continue to support
    strongest renewed convective development south/southwestward across
    much of the Greater Atlanta metro through 01-02Z. Given the 30 kt
    forward propagation, most peak gusts may remain on the order of
    30-40 kt on the larger-scale, but locally stronger downbursts remain
    possible.

    ..Kerr.. 07/30/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8ObjiLcX7TAIpUJZNitfH6yqlnnPqNT7RWWflSI91S_n5XGpC9Xz3qYhGo-A8tOYgsYGxUVQG= qexZZWbBgJ5LzeL4hs$ for graphic product...

    ATTN...WFO...FFC...BMX...

    LAT...LON 34578371 34178347 33548345 33008376 32658443 32628512
    33088544 34318534 34438501 34388460 34448405 34578371=20


    =3D =3D =3D
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