• MESO: Mesoscale Discussion 0792

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 15 17:15:48 2024
    ACUS11 KWNS 151715
    SWOMCD
    SPC MCD 151715=20
    FLZ000-151845-

    Mesoscale Discussion 0792
    NWS Storm Prediction Center Norman OK
    1215 PM CDT Wed May 15 2024

    Areas affected...Portions of the northern/central FL Peninsula

    Concerning...Severe Thunderstorm Watch 244...

    Valid 151715Z - 151845Z

    The severe weather threat for Severe Thunderstorm Watch 244
    continues.

    SUMMARY...An isolated threat for severe hail and damaging winds
    continues this afternoon.

    DISCUSSION...The strongest convection so far this afternoon across
    the central FL Peninsula has been near and north of Lake Okeechobee.
    An outflow boundary from prior convection is present across this
    area, with moderate to locally strong instability (2000-3000 J/kg of
    MLCAPE) present along and south of it per latest mesoanalysis
    estimates. Weak west-southwesterly low-level winds gradually
    strengthen with height through mid/upper levels based on recent VWPs
    from KTBW/KMLB. Around 40-45 kt of deep-layer shear should continue
    to support thunderstorm organization through the rest of the
    afternoon. Although convective mode has become a bit messy with
    multiple mergers/interactions, any semi-discrete supercells could
    still pose a threat for isolated severe hail given the presence of
    steep mid-level lapse rates. Strong to locally damaging winds will
    also remain a concern as filtered daytime heating aids in gradual
    steepening of low-level lapse rates. Across the northern FL
    Peninsula, the airmass is slightly less unstable. But, an isolated
    severe hail/wind threat may still exist downstream of ongoing
    convection.

    ..Gleason.. 05/15/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4kCpZCpFw2OLDZgzWGVBh9CN_hP_BiX2XCKBCAM3Oy9a4vAMEr703PRCuBHhVcVAeMtH2GTVM= PtWnKxDyAxq0Zbhx6w$ for graphic product...

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

    LAT...LON 29358300 29638288 30068191 29668106 28038032 27258017
    27028123 27248267 27868288 28608285 29358300=20


    =3D =3D =3D
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