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  • MESO: Mesoscale Discussion 1143

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Jun 18 03:15:44 2023
    ACUS11 KWNS 180315
    SWOMCD
    SPC MCD 180315=20
    ARZ000-MOZ000-TXZ000-OKZ000-KSZ000-180515-

    Mesoscale Discussion 1143
    NWS Storm Prediction Center Norman OK
    1015 PM CDT Sat Jun 17 2023

    Areas affected...Southeast Kansas...Eastern Oklahoma...Southwest
    Missouri and Western Arkansas

    Concerning...Severe Thunderstorm Watch 329...

    Valid 180315Z - 180515Z

    The severe weather threat for Severe Thunderstorm Watch 329
    continues.

    SUMMARY...A severe threat, associated with the MCS in northwest
    Oklahoma, will move eastward across north-central Oklahoma over the
    next few hours. Wind damage and large hail will be likely. Cells in
    southeast Oklahoma will also expand in coverage, containing a severe
    weather threat as well. The severe threat is expected to eventually
    affect western Arkansas.

    DISCUSSION...The latest high-resolution radar imagery from Oklahoma
    City shows a well-developed linear MCS in northwest Oklahoma, moving
    eastward around 50 knots. The MCS is expected to track
    east-southeast along a gradient of instability into northeast
    Oklahoma over the next few hours. Another severe cluster is
    currently located in southern Oklahoma. These storms are expected to
    develop northeastward across the remainder of southeast Oklahoma
    over the next couple of hours. The two convective systems are
    forecast to continue moving toward western Arkansas and may converge
    late this evening into the early overnight period.=20

    Moderate instability, along with 0-6 km shear near 40 knots evident
    on the Fort Smith WSR-88D VWP, will support a continued severe
    threat with the stronger cells within the MCS. Damaging wind gusts
    will be likely along the leading edge of the large-scale bowing line
    segment with large hail also likely within the more intense parts of
    the line.

    ..Broyles.. 06/18/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5EXC2eBELHyoN-7-QUVl21mQz3DaniDDP8powN4_trV0CX39Eh3djbOvzuUikKSrEei1JevA7= aZKpaI0dDzEw409R0s$ for graphic product...

    ATTN...WFO...LZK...SGF...SHV...TSA...ICT...FWD...OUN...

    LAT...LON 33589465 33999347 35139301 36279309 37499374 38039552
    37929721 37449779 36909789 36049800 35159798 34469790
    34029767 33729692 33589465=20


    =3D =3D =3D
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