• MESO: Mesoscale Discussion 0775

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Monday, May 18, 2026 19:32:21
    ACUS11 KWNS 181932
    SWOMCD
    SPC MCD 181931=20
    KSZ000-OKZ000-182130-

    Mesoscale Discussion 0775
    NWS Storm Prediction Center Norman OK
    0231 PM CDT Mon May 18 2026

    Areas affected...Northwest Oklahoma into Southwest Kansas

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

    Valid 181931Z - 182130Z

    Probability of Watch Issuance...95 percent

    SUMMARY...Large to very-large hail, severe winds, and tornadoes will
    be possible this afternoon. The degree of tornado/very-large hail
    threat will depend on a discrete storm mode. A watch is likely.

    DISCUSSION...Towering cumulus are increasing in the vicinity of
    Dodge City as convergence along a cold front has increased over the
    past couple of hours. With 40+ kt of effective shear and observed
    7.9 C/km mid-level lapse rate on the 18Z DDC sounding, initial
    supercells capable of very-large hail and severe winds can be
    expected. Tornadoes will also be possible where discrete modes can
    be maintained longer given the low-level shear. However, the linear
    forcing from the cold front may be enough to encourage a quick
    transition to a more linear mode. Regardless of the exact evolution,
    all severe hazards will be possible. A watch will likely be needed
    this afternoon.

    ..Wendt/Hart.. 05/18/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9w_Q9H9hYUzNqvaQEQ5fXH7AYulGruIl7D70Ls0CYShuzYohf3R6yFGhv0JdeidvGhuB1kOpu= 8RQozQDOGhEHB0bfkE$ for graphic product...

    ATTN...WFO...ICT...OUN...DDC...AMA...

    LAT...LON 36499920 36489977 36590009 36800021 37240015 37729977
    37999955 38189903 38149863 37889833 37319824 36819839
    36499920=20

    MOST PROBABLE PEAK TORNADO INTENSITY...120-145 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...4.00+ IN


    =3D =3D =3D
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