• MESO: Mesoscale Discussion 2292

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Dec 27 21:17:25 2024
    ACUS11 KWNS 272117
    SWOMCD
    SPC MCD 272116=20
    ALZ000-FLZ000-MSZ000-272245-

    Mesoscale Discussion 2292
    NWS Storm Prediction Center Norman OK
    0316 PM CST Fri Dec 27 2024

    Areas affected...portions of southeast Mississippi into southwestern
    Alabama

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

    Valid 272116Z - 272245Z

    Probability of Watch Issuance...20 percent

    SUMMARY...An isolated tornado threat should persist for at least a
    few more hours.

    DISCUSSION...Transient supercell structures have supported sparse
    tornado development this afternoon despite gradually weakening
    low-level shear profiles. Given modest surface heating, surface
    temperatures have warmed to near 70 F, contributing up to 1000 J/kg
    MLCAPE (per 21Z mesoanalysis) where surface dewpoints have climbed
    to the upper 60s F. The best low-level moisture and dewpoints reside
    roughly from Jones County, MS to the Mobile Bay area, and this is
    where the most robust thunderstorm development (with strong
    low-level rotation and/or tornadoes) has occurred. Given the limited
    overlap of the best low-level shear and moisture, a localized
    tornado threat may persist for only a few more hours.

    ..Squitieri/Hart.. 12/27/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9Qos5CnNj0ARD7C6P-beveA7PvT8v4vkZ5_tdx0KAbtBiIRTPB3tB4rcvYUvhjGF7RFWoIV-v= hLvU8w10pFWs_IAPt0$ for graphic product...

    ATTN...WFO...BMX...MOB...JAN...LIX...

    LAT...LON 30258926 30588961 31088964 32348895 32798852 32848815
    32508796 31958789 31398759 30958716 30608708 30278734
    30098841 30258926=20


    =3D =3D =3D
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