• MESO: Mesoscale Discussion 1986

    From COD Weather Processor @1:2320/107 to All on Sat Aug 15 17:25:30 2026
    ACUS11 KWNS 151725
    SWOMCD
    SPC MCD 151725
    NCZ000-VAZ000-WVZ000-TNZ000-SCZ000-KYZ000-GAZ000-152000-

    Mesoscale Discussion 1986
    NWS Storm Prediction Center Norman OK
    1225 PM CDT Sat Aug 15 2026

    Areas affected...Cumberland Plateau into the Blue Ridge...including
    the Great Smoky Mountains

    Concerning...Severe potential...Watch unlikely

    Valid 151725Z - 152000Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated occurrences of locally damaging winds appear
    possible with the strongest storms this afternoon. The areal
    coverage of the threat is expected to remain too limited to warrant
    a watch issuance.

    DISCUSSION...Visible satellite and radar imagery indicate a gradual
    increase in thunderstorm activity early this afternoon from the
    Cumberland Plateau into the Blue Ridge, including the Great Smoky
    Mountains. In the absence of appreciable forcing for ascent, it
    appears daytime heating of a moist and moderately to strongly
    unstable air mass (MLCAPE of 1500-3000 J/kg - per latest objective
    analysis) is contributing to this development. Regional VWPs
    indicate rather weak vertical shear, which should limit the degree
    of storm organization with pulse-type storm modes expected.
    Nonetheless, isolated occurrences of locally damaging winds appear
    possible with the strongest storms, owing to the potential for
    effective water loading of convective downdrafts.

    ..Mead/Guyer.. 08/15/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!4OjRjwvja8h_iPC8EUztePZ5-taseoZXohBpWO-KCmS98ny9WHYCtlHaUchBZD27pQIE512s57-FDCVykz1pjT7PYwo$ for graphic product...

    ATTN...WFO...RNK...RLX...GSP...MRX...JKL...FFC...OHX...

    LAT...LON 35628489 36668420 37718390 38148331 37088146 36838099
    36298083 35358187 34588318 34278430 34808474 35628489

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)