• MESO: Mesoscale Discussion 1136

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, July 22, 2018 18:56:26
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    ACUS11 KWNS 221856
    SWOMCD
    SPC MCD 221856
    FLZ000-GAZ000-ALZ000-222100-

    Mesoscale Discussion 1136
    NWS Storm Prediction Center Norman OK
    0156 PM CDT Sun Jul 22 2018

    Areas affected...Southern AL...FL Panhandle

    Concerning...Severe Thunderstorm Watch 303...304...

    Valid 221856Z - 222100Z

    The severe weather threat for Severe Thunderstorm Watch 303, 304
    continues.

    SUMMARY...Severe storms over southern AL will track southeastward
    into the FL Panhandle.

    DISCUSSION...Several intense thunderstorms, including multiple
    supercells, are affecting southern AL. These storms are tracking
    southeastward at 20-30 knots and will spread into the FL Panhandle
    in the next 1-2 hours. The KMOB VAD profile shows northwesterly
    flow approaching 50 knots at 3-4 km AGL, which will continue to
    support supercells capable of large hail and damaging wind gusts.
    Two inch hail was recently reported in Covington County AL with one
    of the supercells. Low level winds are veered and rather weak.
    However, the presence of multiple storm-scale outflow boundaries and
    large CAPE values may result in localized and brief environments
    favorable for a tornado or two this afternoon. Also, eventual
    organization into one or more bowing structures that track across
    the FL Panhandle is possible.

    ..Hart.. 07/22/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...TAE...BMX...MOB...

    LAT...LON 30178699 30488839 32378835 32288582 30428412 29538503
    30178699



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