• MESO: Mesoscale Discussion 1672

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jul 22 00:05:53 2023
    ACUS11 KWNS 220005
    SWOMCD
    SPC MCD 220005=20
    GAZ000-ALZ000-220130-

    Mesoscale Discussion 1672
    NWS Storm Prediction Center Norman OK
    0705 PM CDT Fri Jul 21 2023

    Areas affected...Southern Alabama dns southwest Georgia

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

    Valid 220005Z - 220130Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated thunderstorms are expected across southern
    Alabama and southwest Georgia over the next few hours. Isolated
    damaging wind gusts are possible.

    DISCUSSION...Thunderstorms have developed south of watch 538 in an
    unstable airmass with 2000 to 2500 J/kg MLCAPE (per SPC
    mesoanalysis). However, storms have been mostly unorganized thus far
    amid very weak deep layer flow (less than 20 knots through the
    entire troposphere). Therefore, despite a favorable thermodynamic
    profile, weak shear and minimal forcing for ascent should keep the
    threat isolated. In addition, any marginal threat should quickly
    wane once the boundary layer begins to cool. While some expansion of
    watch 538 may be needed across portions of south-central Alabama and
    southwest Georgia, no downstream watch is anticipated over this area
    due to the marginal and short duration threat.

    ..Bentley/Edwards.. 07/22/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7cfhiZmZHRdknSLISyeH8QnhyDwfawWBhFZanRMv3MiyggOlA9gLYs-j1joxDZBQILmQLz36y= 6Czzr6p9qNXpdg_z9w$ for graphic product...

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

    LAT...LON 32318828 32548643 32508500 32488438 32228373 31928343
    31288399 31038596 31248753 31358801 31608826 32318828=20


    =3D =3D =3D
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