• MESO: Mesoscale Discussion 0874

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, June 25, 2018 16:30:30
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    ACUS11 KWNS 251630
    SWOMCD
    SPC MCD 251629
    SCZ000-NCZ000-TNZ000-GAZ000-251730-

    Mesoscale Discussion 0874
    NWS Storm Prediction Center Norman OK
    1129 AM CDT Mon Jun 25 2018

    Areas affected...the Great Smoky Mountains and western Carolina
    Piedmont

    Concerning...Severe potential...Watch possible

    Valid 251629Z - 251730Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Isolated gusts of 45-55 mph and locally up to around 60
    mph appear increasingly likely this afternoon. Pockets of wind
    damage are expected.

    DISCUSSION...An MCV over central KY will continue east towards the
    Cumberland Gap and southwestern VA this afternoon. A belt of 40-45
    kt westerly flow at 1-2 km AGL from KHPX and KOHX on the south side
    of the mid-level circulation will move into the Cumberland Gap
    vicinity later this afternoon. Surface temperatures are warming
    into the middle to upper 80s degrees F with additional warming into
    the lower 90s expected. The net result of steep 0-2 km lapse rates
    (7-8 degrees C/km) will support a more favorable environment for
    strong gusts to reach the surface. The preferred multicell mode
    will limit the overall risk but localized damaging gusts are
    expected.

    ..Smith/Thompson.. 06/25/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...RAH...RNK...CAE...GSP...MRX...FFC...

    LAT...LON 36558344 36478095 36038028 35178023 34758033 34528056
    34528142 34348312 34808415 35368436 36558344



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