• MESO: Mesoscale Discussion 1662

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 21 12:33:01 2023
    ACUS11 KWNS 211232
    SWOMCD
    SPC MCD 211232=20
    ARZ000-MOZ000-OKZ000-KSZ000-211400-

    Mesoscale Discussion 1662
    NWS Storm Prediction Center Norman OK
    0732 AM CDT Fri Jul 21 2023

    Areas affected...Far Southeast KS...Northeast OK...Extreme Southwest
    MO...Far Northwest AR

    Concerning...Severe Thunderstorm Watch 533...

    Valid 211232Z - 211400Z

    The severe weather threat for Severe Thunderstorm Watch 533
    continues.

    SUMMARY...Ongoing convective line, which is capable of producing
    damaging gusts, is expected to continue progressing eastward for at
    least the next two hours, with some additional development possible
    along its southern flank.

    DISCUSSION...A well-defined mesoscale convective vortex, generated
    by last night's convective system, is centered just northeast of PNC
    in north-central OK. Outflow associated with this vortex arcs from
    near IDP in far southeast KS to near TQH in northeast OK and then
    back southwestward through central OK into northwest TX. Strong
    thunderstorms are still ongoing along the northern portion of this
    outflow (from far southeast KS through northeast OK), where gusts
    from 35 to 40 kt have been reported over the past hour.=20

    Updraft strength, as determined by echo tops and 9 km CAPPI data,
    has remained fairly consistent through the line. A localized
    intensification occurred within the line just north to TQH, where
    the line intersected some preceding development. Overall expectation
    is for the line to continue eastward over the next two hours, with
    the potential for some additional development along its southern
    flank near the stalled frontal boundary. Damaging wind gusts will
    remain possible.

    ..Mosier.. 07/21/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7iV6m_OqpGIVr4gbzEmSYRdcxa3Vn1fFqElBFssegec0FPCvjoiHPaQB1lp0r8t33IhLknDed= 08u7O54e67tewjon6g$ for graphic product...

    ATTN...WFO...SGF...TSA...ICT...

    LAT...LON 36859572 37109608 37479599 37279502 36879453 35909390
    35389388 35179469 35529539 36259535 36859572=20


    =3D =3D =3D
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