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  • MESO: Mesoscale Discussion 0561

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Apr 27 06:17:38 2026
    ACUS11 KWNS 270617
    SWOMCD
    SPC MCD 270617=20
    KSZ000-OKZ000-270715-

    Mesoscale Discussion 0561
    NWS Storm Prediction Center Norman OK
    0117 AM CDT Mon Apr 27 2026

    Areas affected...Western Oklahoma into southern KS

    Concerning...Tornado Watch 155...

    Valid 270617Z - 270715Z

    The severe weather threat for Tornado Watch 155 continues.

    SUMMARY...The threat for an isolated supercell remains along the
    warm front into southeast Kansas, while the severe threat is
    diminishing to the southwest into Oklahoma.

    DISCUSSION...The primary mid-upper jet is ejecting
    east-northeastward from the TX Panhandle toward KS, and an
    associated surface cyclone in the eastern OK Panhandle will likewise
    continue to develop east-northeastward. South of the cyclone track
    and beneath the jet core, veering of low-level flow to more westerly
    will continue across western and northern OK, with rapid drying
    expected above the surface. Despite the remaining near-surface
    moisture and associated buoyancy, the drying above the surface and a
    fairly warm elevated mixed layer suggest that additional storm
    development is unlikely into northwest OK. Meanwhile, some
    potential for isolated supercell development will persist in the
    short term along the warm front into southeast KS, where VWPs show
    very large/curved hodographs coincident with upper 60s
    boundary-layer dewpoints.

    ..Thompson.. 04/27/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-E12DL2U6vV1bzvP1JdmGG8jPzZydOYPS9tJw9dkR-XhP0PTZlotB25i4VbKS9zSQkBmQAN-a= mic3Gr848Uhm1erPs8$ for graphic product...

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

    LAT...LON 37069562 36999652 37069711 37449709 37649674 37669606
    37559565 37289554 37069562=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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