• MESO: Mesoscale Discussion 0663

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue May 7 00:43:50 2024
    ACUS11 KWNS 070043
    SWOMCD
    SPC MCD 070043=20
    OKZ000-070215-

    Mesoscale Discussion 0663
    NWS Storm Prediction Center Norman OK
    0743 PM CDT Mon May 06 2024

    Areas affected...Northwest into central OK

    Concerning...Tornado Watch 189...

    Valid 070043Z - 070215Z

    The severe weather threat for Tornado Watch 189 continues.

    SUMMARY...An uptick in strong tornado potential is expected through
    and beyond 9 PM CDT.

    DISCUSSION...A southwest to northeast corridor of supercells has
    become established from west-central into north-central OK. Midlevel mesocyclones with the cells across Blaine and Kingfisher County have intensified this evening as they have moved into an environment
    characterized by increasing low-level moisture (with dewpoints near
    70 F), strong to extreme instability, and strengthening low-level
    flow/shear as noted on the KTLX and KVNX VWPs. The cell over
    Garfield County earlier produced a tornado, and tornado potential
    with the other storms along this corridor will increase as they move
    eastward this evening.=20

    The 00Z OUN sounding depicts a volatile environment, with MLCAPE in
    excess of 3500 J/kg, effective shear of around 60 kt, and 0-1 km SRH
    in excess of 300 m2/s2. Low-level flow/shear will continue to
    increase through the evening, becoming even more favorable for
    strong to intense tornadoes. The primary uncertainty this evening is
    the cluster storm mode that has developed, but the ongoing cell
    south of Enid and the trailing cell over Custer County will both
    have an opportunity to move through a very favorable environment
    through 9 PM CDT.

    ..Dean.. 05/07/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8HpjVEuZT1qI5Mms2lTncVTvxV06WjwRPk4oGlof4cWtZIaowV5qEkY3pbTwiGwqUr3YCB4Wp= lKS-vO23aDIMcPlhS4$ for graphic product...

    ATTN...WFO...TSA...OUN...

    LAT...LON 35279944 35729903 36509814 36889766 36799661 35969711
    35319777 35239898 35279944=20


    =3D =3D =3D
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