• MESO: Mesoscale Discussion 0012

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jan 1 23:54:26 2022
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    ACUS11 KWNS 012354
    SWOMCD
    SPC MCD 012353=20
    TNZ000-NCZ000-GAZ000-ALZ000-020100-

    Mesoscale Discussion 0012
    NWS Storm Prediction Center Norman OK
    0553 PM CST Sat Jan 01 2022

    Areas affected...eastern Tennessee...northern Alabama...and
    northwestern Georgia

    Concerning...Tornado Watch 4...

    Valid 012353Z - 020100Z

    The severe weather threat for Tornado Watch 4 continues.

    SUMMARY...Risk for locally severe storms -- including potential for
    a tornado or two -- continues. New WW will likely be issued within
    the hour, given the scheduled 02/01Z expiration of WW 004.

    DISCUSSION...Latest radar loop shows a broken band comprised of
    several strong/severe storms, extending from northwestern Alabama to
    eastern portions of Middle Tennessee. While the persistently warm
    mid-level temperatures/weak mid-level lapse rates remain a
    hindrance, very strong shear -- 0-1km shear observed at 41 kt and
    mid-level flow west-southwesterly at 90 kt per the latest KHTX
    WSR-88D VWP -- will continue to support organized/rotating storms
    despite the thermodynamic deficiencies.

    As a result, expect severe potential to continue -- and gradually
    expand eastward with time into areas east of WW 004. As the watch
    nears its scheduled expiration, a new Tornado Watch will be issued
    to extend from the ongoing severe convection over Middle Tennessee
    eastward across Tennessee and northwestern Georgia.

    ..Goss.. 01/01/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!vORgGG_aFarQTUsFjqILe9CqG0UZkCYKHPs0MZO93K4I69WhtvgXn9koEjTX6-F3cIsYR0oT$=
    for graphic product...

    ATTN...WFO...GSP...MRX...FFC...OHX...BMX...HUN...

    LAT...LON 36528312 36148312 35358403 34318461 34268538 34358791
    34808744 35858534 36528312=20



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