• MESO: Mesoscale Discussion 1924

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Oct 28 20:12:25 2021
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    ACUS11 KWNS 282012
    SPC MCD 282011=20

    Mesoscale Discussion 1924
    NWS Storm Prediction Center Norman OK
    0311 PM CDT Thu Oct 28 2021

    Areas affected...central through south Florida

    Concerning...Tornado Watch 545...

    Valid 282011Z - 282145Z

    The severe weather threat for Tornado Watch 545 continues.

    SUMMARY...Threat for a few strong to damaging wind gusts and a
    couple of tornadoes will persist over central and south central FL
    through about 23Z. An additional WW across south FL appears unlikely
    at this time.

    DISCUSSION...A broken line of storms including a few small
    supercells continues moving east southeast through south central FL.
    The VWP data from Melbourne show strong 0-6 km shear, but modest
    low-level hodographs due to the unidirectional nature of the winds
    in the 0-2 km layer. The atmosphere remains moderately unstable with
    1500-2000 J/kg MLCAPE but with weak mid-level lapse rates. This
    environment will continue to support some bowing and supercell
    structures with isolated damaging wind and a couple of brief
    tornadoes possible.=20

    Farther south across south FL, vertical shear is weaker and is not
    expected to undergo a more substantial increase until mid-evening
    when the boundary layer will be less unstable. While a limited
    severe threat cannot be ruled out across south FL, overall threat
    does not appear sufficient to warrant an additional WW in the near

    ..Dial.. 10/28/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!sSoUx0CA7m_lm47BS5lagz2ZiAgqKqEyfsH7Rg3rUUewfH3A4TrbA_0a1hDxoNkwNNqWz3vU$=
    for graphic product...


    LAT...LON 26918225 27458184 28138128 28908080 28538025 27158049
    26348173 26918225=20

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