• MESO: Mesoscale Discussion 0790

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 15 12:37:32 2024
    ACUS11 KWNS 151237
    SWOMCD
    SPC MCD 151236=20
    FLZ000-151400-

    Mesoscale Discussion 0790
    NWS Storm Prediction Center Norman OK
    0736 AM CDT Wed May 15 2024

    Areas affected...Parts of central/north FL

    Concerning...Tornado Watch 243...

    Valid 151236Z - 151400Z

    The severe weather threat for Tornado Watch 243 continues.

    SUMMARY...Some threat for a tornado or two, hail, and damaging wind
    will persist through the morning. New watch issuance is possible
    after WW 243 expires.

    DISCUSSION...A notable uptick in storm coverage is ongoing this
    morning across central FL. Most convection remains focused near a
    weak surface boundary draped from near/north of Tampa to south of
    Daytona Beach, but storm initiation is also underway south of this
    corridor. The 10Z XMR and 12Z TBW soundings depict a very moist and
    unstable environment, with dewpoints in the upper 70s F and MLCAPE
    near or above 2500 J/kg. Pockets of diurnal heating will support
    some additional destabilization and a potential increase in storm
    intensity through the morning.=20

    Moderate deep-layer shear within unidirectional southwesterly flow
    aloft will support organized convection, including the potential for
    a few supercells. Low-level shear/SRH is rather modest due to
    generally veered surface winds, but any longer-lived supercell
    within this very moist/unstable environment could pose some tornado
    threat. Otherwise, a threat for large hail and locally damaging wind
    will accompany the strongest storms.=20=20

    While ongoing storms are largely confined to central FL, some
    increase in storm coverage has been noted over the northeast Gulf of
    Mexico, and additional development into north FL remains possible
    later this morning. With the severe threat expected to persist
    beyond the 15Z expiration time of WW 243, new watch issuance is
    possible later this morning.

    ..Dean/Guyer.. 05/15/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_xv2OpPbN--jtFio_K5hBqHZVSwLwL3kbwQhYXV1G9E6aZI-J0mYd_5jxvMbzLKVrBlMPimfJ= TVHXY_tEGzpmbv-5dM$ for graphic product...

    ATTN...WFO...MLB...TBW...JAX...TAE...

    LAT...LON 26978276 27238337 29308368 29658305 30008086 29138022
    28248022 27578065 27128169 27018218 26978276=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)