• MESO: Mesoscale Discussion 0194

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Mar 6 18:02:04 2024
    ACUS11 KWNS 061801
    SWOMCD
    SPC MCD 061801=20
    FLZ000-062000-

    Mesoscale Discussion 0194
    NWS Storm Prediction Center Norman OK
    1201 PM CST Wed Mar 06 2024

    Areas affected...central/southern Florida Peninsula

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

    Valid 061801Z - 062000Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Thunderstorm activity is expected to increase over the
    next couple of hours. Isolated strong storms may produce hail near a
    half inch to 1 inch in diameter and gusty winds. A watch is not
    currently expected.

    DISCUSSION...Thunderstorms along the southwest coast of the FL
    Peninsula have increased in intensity over the past 30 minutes or
    so. This activity is moving east along a weak differential heating
    zone created by early clouds and morning showers, and within a zone
    of weak low-level convergence. Despite scattered clouds across the central/southern Peninsula, dewpoints mostly in the upper 60s to
    near 70 F and modest midlevel lapse rates has allowed MLCAPE values
    to increase to around 1000-1500 J/kg. A 17z RAOB from MFL does
    indicated some weak inhibition in the 500-1500 m layer, though ample
    elevated instability is noted. Additional heating increasing ascent
    through the afternoon should largely mitigate inhibition.

    Vertical shear will remain somewhat marginal, around 25-35 kt, but
    sufficient for at least transient/short-lived strong/organized
    updrafts. Hail approaching 1 inch in diameter and gusty winds will
    be the main hazards with isolated thunderstorm activity through
    23-00z. Low-level winds are fairly weak, especially through 1 km.
    However, some favorable curvature to low-level hodograph (per 17z
    MFL RAOB and region radar VWPs) and effective SRH around 100 m2/s2
    amid a very moist low-level airmass could support a brief/weak
    spin-up near the southeast coast where better low-level convergence
    is noted. Overall, severe potential is expected to remain marginal
    and sporadic, and a watch is not expected at this time.

    ..Leitman/Hart.. 03/06/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8Fp9hIuDXJuj31AZKr2veo631HQL7CCQ-JpVwjruzeEJ2g75eKzsRfU1CtV-o5STVJCIC-KhU= SSqQMfaQjCj3Gyqqig$ for graphic product...

    ATTN...WFO...MFL...MLB...TBW...

    LAT...LON 25668008 25488016 25468029 25418060 25498093 25728141
    26038180 26558182 27568158 28288116 28448073 28258039
    28078021 27597998 26317984 25668008=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)