• MESO: Mesoscale Discussion 1906

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Aug 8 18:02:03 2023
    ACUS11 KWNS 081801
    SWOMCD
    SPC MCD 081801=20
    GAZ000-FLZ000-ALZ000-MSZ000-081930-

    Mesoscale Discussion 1906
    NWS Storm Prediction Center Norman OK
    0101 PM CDT Tue Aug 08 2023

    Areas affected...portions of far southeastern Mississippi...central
    and southern Alabama...far western Georgia

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

    Valid 081801Z - 081930Z

    Probability of Watch Issuance...40 percent

    SUMMARY...The risk for damaging gusts is increasing across portions
    of the Southeast. Convective trends are being monitored for the need
    of a Severe Thunderstorm Watch issuance.

    DISCUSSION...The remnants of a decaying MCS continues to progress
    east across the Southeast states as diurnal heating ahead of a
    diminishing cold pool is supporting surface temperatures to warm
    over 90 F. Mid to upper 70s F dewpoints are contributing to 5000
    J/kg SBCAPE/MUCAPE amid 40+ kts of 500 mb westerly flow and
    corresponding 40-50 kts of effective bulk (speed) shear. The extreme
    buoyancy will support water-loaded downdrafts and associated
    damaging gusts with the stronger pulse-cellular storms. If cold
    pools can congeal and rejuvenate the decaying MCS, a more organized
    damaging gust threat may ensue. Convective trends are being
    monitored for the need of a Severe Thunderstorm Watch issuance
    pending signs of more robust organization.

    ..Squitieri/Guyer.. 08/08/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6TNMFUgb-u_9Vv1zA90xDrM20TVpRKAP26XgWlVYjCaUroxmVkgEpGzQeAFh2_bUprSb9IhNn= zTdRY1PDeVIERMZthA$ for graphic product...

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

    LAT...LON 31068841 31228895 31708953 32018931 32778796 33068682
    32858490 32628437 32158413 31508416 31038459 30828595
    31068841=20


    =3D =3D =3D
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