• MESO: Mesoscale Discussion 0123

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Feb 28 16:46:51 2026
    ACUS11 KWNS 281646
    SWOMCD
    SPC MCD 281646=20
    FLZ000-281845-

    Mesoscale Discussion 0123
    NWS Storm Prediction Center Norman OK
    1046 AM CST Sat Feb 28 2026

    Areas affected...portions of the central/southern Florida Peninsula

    Concerning...Severe potential...Watch possible=20

    Valid 281646Z - 281845Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Thunderstorm activity will increase over the next couple
    of hours over eastern portions of the central/southern Florida
    Peninsula. Some of these storms could become strong to severe this
    afternoon, posing a risk for locally damaging wind gusts and
    isolated large hail.

    DISCUSSION...Convection is developing along a surface
    boundary/residual outflow oriented from Charlotte to St. Lucie
    counties. This activity is developing in a moist environment with
    dewpoints in the 69-73 F range. Temperatures have already warmed
    into the upper 70s/low 80s F at midday. With additional heating and
    increasing large-scale ascent overspreading the region this
    afternoon, convection will intensify and increase in coverage over
    the next couple of hours, both along the surface outflow and near
    the east coast sea breeze.=20

    MLCAPE values have already increased to around 1500-2000 J/kg and
    effective shear will support some updraft organization despite weak
    low-level flow. Midlevel lapse rates are forecast to remain poor,
    but given sufficient instability and shear, some stronger storms
    could produce hail to around 1.5 inches. Steepened low-level lapse
    rates and storm interactions also could support locally strong wind
    gusts. The best area for severe storms is somewhat limited
    spatially, near St. Lucie to Broward Counties, and the need for a
    watch is uncertain, though trends will be monitored over the next
    couple of hours.

    ..Leitman/Smith.. 02/28/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_SSDlFyiOZbOrsccaxyWRLRGs27bf69WQUAEzx8zQNAFznyQFnJ7diBaXUPmWS-LtHQSv0a2E= FbKtAPcRyqpLEx_XOo$ for graphic product...

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

    LAT...LON 27238166 27728144 27808110 27838032 27467984 26567967
    25917973 25588008 25618042 25828067 27238166=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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