• MESO: Mesoscale Discussion 1199

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Friday, June 19, 2026 17:36:57
    ACUS11 KWNS 191736
    SWOMCD
    SPC MCD 191736=20
    FLZ000-GAZ000-191900-

    Mesoscale Discussion 1199
    NWS Storm Prediction Center Norman OK
    1236 PM CDT Fri Jun 19 2026

    Areas affected...Northern Florida and extreme southeast Georgia

    Concerning...Severe potential...Watch unlikely=20

    Valid 191736Z - 191900Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A localized corridor of damaging wind potential is
    emerging across northern Florida and far southeast Georgia. Watch
    issuance is not expected.

    DISCUSSION...Over the past 30 minutes, a cluster of thunderstorms
    east of the KTLH radar has developed a consolidated cold pool per
    regional velocity imagery. This is likely the result of rapid
    updraft collapse based on latest KDP trends; however, latest IR
    imagery shows renewed development on the outflow boundary,
    suggesting that cold-pool driven propagation may continue for the
    short term. The poor shear environment (per regional VWPs) will
    likely limit the overall intensity and duration of this convection,
    but given downstream warming (temperatures climbing into the low
    90s, a few degrees ahead of morning guidance) and steepening of
    low-level lapse rates, embedded bursts of damaging winds (most
    likely 35-55 mph, but potentially as strong as 60 mph) seem
    possible.=20

    While damaging wind potential appears highest with the eastward
    propagating cluster, a few clusters along the FL/GA border north of
    the Jacksonville, FL area are similarly propagating into the warming
    air mass across northern FL. More isolated downbursts appear
    possible with this activity additional convection develops along the
    outflow boundaries over the next couple of hours.

    ..Moore/Hart.. 06/19/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6JwGZx9VxxYt2ZcMwZHWOZ72b-foUddycbfiADeISLENgbKOAmLaLmQA_VpNdoTTUFEx9jzf_= shmMdbmGvi_iNKJis0$ for graphic product...

    ATTN...WFO...JAX...TAE...

    LAT...LON 30028398 30318349 30578329 30718325 30738301 30718138
    30408134 29918121 29818125 29748155 29728214 29708264
    29768318 29818355 29958378 30028398=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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