• MESO: Mesoscale Discussion 1920

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Oct 28 03:22:57 2021
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    ACUS11 KWNS 280322
    SPC MCD 280322=20

    Mesoscale Discussion 1920
    NWS Storm Prediction Center Norman OK
    1022 PM CDT Wed Oct 27 2021

    Areas affected...parts of the coastal Florida Panhandle

    Concerning...Severe potential...Watch possible=20

    Valid 280322Z - 280545Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Isolated severe storms may eventually impact coastal
    counties of the Florida Panhandle.

    DISCUSSION...An expanding batch of thunderstorms continues to move
    eastward across southern AL and into the western FL Panhandle, with
    the bulk of the activity offshore. A warm front currently extends
    from the Mobile/Pensacola area east/southeastward over the Gulf of
    Mexico, with only low to mid 60s F dewpoints toward Panama City FL
    as of 03Z.

    Warm advection aided by 30-40 kt southwesterly flow at 850 mb will
    result in a gradual increase in instability across the coastal
    counties of the FL Panhandle, coincident with the arrival of 70s F
    dewpoints. Shear will favor supercells, and perhaps a brief tornado,
    but the overall threat will depend on the degree of boundary-layer destabilization over land. As such, an additional watch could be
    needed later tonight east of WW 543.

    ..Jewell/Grams.. 10/28/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!prQyCbHG1isE0gnCiasIUeKmlx0O0GLpGvxtRUT9XNLhW0Y_f9KxjcMmqfQiVMjfbKtBOtIu$=
    for graphic product...


    LAT...LON 30668638 30608604 30438567 29958433 29758461 29628484
    29548502 29668540 29898549 30258607 30278632 30398642

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