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  • MESO: Mesoscale Discussion 0906

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, June 27, 2018 18:29:38
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    ACUS11 KWNS 271829
    SWOMCD
    SPC MCD 271829
    SCZ000-NCZ000-GAZ000-TNZ000-KYZ000-272100-

    Mesoscale Discussion 0906
    NWS Storm Prediction Center Norman OK
    0129 PM CDT Wed Jun 27 2018

    Areas affected...Southern Kentucky...Tennessee...Northern
    Georgia...Western South Carolina...Western North Carolina

    Concerning...Severe potential...Watch possible

    Valid 271829Z - 272100Z

    Probability of Watch Issuance...40 percent

    SUMMARY...A wind damage and hail threat is expected to develop over
    the next couple of hours from middle Tennessee eastward into the
    western Carolinas. A weather watch may need to be considered for the
    area this afternoon.

    DISCUSSION...Recent radar imagery across the southern Appalachian
    mountains has shown a gradual increase in convective coverage.
    Multiple multicell clusters are ongoing along a gradient of
    instability from southern Kentucky east-southeastward into the
    western Carolinas. The RAP is estimating MLCAPE values along this
    corridor from 1000 to 2500 J/Kg. The latest WSR-88D VWP from
    Morristown, Tennessee shows a unidirectional wind profile with 0-6
    km shear near 25 kt. This will support organized multicells in the
    form of short bowing line segments. As low-level lapse rates
    continue to steepen, wind damage will become possible along the
    leading edge of these short line segments. Hail may also accompany
    the stronger cores as well.

    ..Broyles/Thompson.. 06/27/2018

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

    ATTN...WFO...RAH...CAE...GSP...MRX...JKL...FFC...LMK...OHX...
    HUN...

    LAT...LON 34278363 34148248 34208130 34578037 35078008 35458021
    35728047 35898091 35848144 35848220 35988309 36148377
    36718493 37258583 37238640 36768671 35978660 35288591
    34868520 34278363



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