• MESO: Mesoscale Discussion 1011

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 19 18:14:00 2021
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    ACUS11 KWNS 191813
    SPC MCD 191813=20

    Mesoscale Discussion 1011
    NWS Storm Prediction Center Norman OK
    0113 PM CDT Sat Jun 19 2021

    Areas affected...southwest GA

    Concerning...Tornado Watch 285...

    Valid 191813Z - 191915Z

    The severe weather threat for Tornado Watch 285 continues.

    SUMMARY...Several supercells are developing in the warm sector
    across southwest GA. The risk for a couple of tornadoes is
    increasing with potential perhaps peaking between now (210pm EDT)
    and 4pm EDT.

    DISCUSSION...Radar/satellite imagery indicates the development of
    several supercells in a destabilizing warm sector near the southeast AL/southwest GA border early this afternoon. KEOX VAD data
    indicates around 200 m2/s2 0-1km SRH per observed storm motions. A
    maritime warm front is draped across southwest GA with mid 80s deg F temperatures and southerly flow located to its south, whereas upper
    70s and backed east-southeasterly surface flow is located to the
    north of the boundary. As storms interact with the vorticity-rich
    zone along the maritime warm front, it seems tornado potential with
    the supercells will be greatest in the vicinity of the boundary.=20
    Additional storms are developing to the south of a storm with a
    history of a tornado, and these storms will likely move north into
    the warm frontal zone and potentially pose a tornado risk.

    ..Smith.. 06/19/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!uW_yzQcXunxeYTakfy1Ovk6OU3HWPqXXcMzhf5G0Rr-BpekQV498Ub0hr2ufS6pm8mU4-YcS$=
    for graphic product...


    LAT...LON 31758497 31218524 31108497 31688445 31948456 31758497=20

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