• MESO: Mesoscale Discussion 2009

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Dec 11 07:03:09 2021
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    ACUS11 KWNS 110703
    SWOMCD
    SPC MCD 110702=20
    KYZ000-110830-

    Mesoscale Discussion 2009
    NWS Storm Prediction Center Norman OK
    0102 AM CST Sat Dec 11 2021

    Areas affected...portions of central into eastern KY

    Concerning...Severe potential...Tornado Watch likely=20

    Valid 110702Z - 110830Z

    Probability of Watch Issuance...95 percent

    SUMMARY...A threat for severe thunderstorms capable of damaging wind
    gusts and a couple of tornadoes will continue across parts of
    central into eastern KY overnight. A new watch will be needed.

    DISCUSSION...Severe storms, in particular just southwest of
    Louisville, and to the west of Bowling Green, continue to exhibit
    rotation and periodic tornado debris signatures in radar data. The
    activity across north-central KY is nearing the edges of WW 554,
    while the south-central KY storms will not move out of the watch
    before it is set to expire at 08z. The environment will remain
    favorable for severe storms and tornadoes for a few more hours as
    convection tracks east into eastern KY.=20

    The eastward extent of the severe threat is somewhat uncertain,
    though low level moisture decreases considerably from roughly Rowan
    to Bell counties in eastern KY, where dewpoints are generally in the
    mid/upper 50s. This likely delineates the eastward extent of the
    greater severe threat and a new watch across eastern portions of WFO
    LMK and western portions of WFO JKL's domain will likely be needed
    soon.

    ..Leitman/Edwards.. 12/11/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!oEELg4HT3ji206S_oA3s-O6QViSZMo3fki5vnOwpDSb_-b4rYCUmo2CBCAoLa9TUkby3_V-D$=
    for graphic product...

    ATTN...WFO...JKL...ILN...LMK...

    LAT...LON 36648604 36748631 37008659 37468635 38298517 38498473
    38578438 38558408 38388352 38118331 37828316 37558324
    37328344 36888394 36638466 36638551 36638581 36648604=20



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