• MESO: Mesoscale Discussion 0552

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sun Apr 26 22:32:05 2026
    ACUS11 KWNS 262231
    SWOMCD
    SPC MCD 262231=20
    OKZ000-TXZ000-270000-

    Mesoscale Discussion 0552
    NWS Storm Prediction Center Norman OK
    0531 PM CDT Sun Apr 26 2026

    Areas affected...Parts of northwest Texas and southern Oklahoma

    Concerning...Tornado Watch 151...

    Valid 262231Z - 270000Z

    The severe weather threat for Tornado Watch 151 continues.

    SUMMARY...The early stages of supercell splitting and maturation is
    ongoing along/south of the Red River in northwest Texas. While
    isolated, the potential for very large (2-3 inch) hail, and perhaps
    a tornado, will increase over the next 1-2 hours.

    DISCUSSION...Radar imagery from KFDR shows the early stages of
    supercell splitting ongoing to the west of the Wichita Falls, TX
    area, and latest GOES IR 1-minute imagery has shown steady cloud-top
    cooling associated with intensifying convection. A couple of hail
    reports have already been noted (including hail to up 1.5 inches in
    diameter) with these storms. The observed splitting trend
    corroborates recent RAP forecast that depict elongated, nearly
    straight hodographs across the region that feature around 50 knots
    of effective bulk shear. Along with a favorable kinematic
    environment, regional buoyancy values are very high with MLCAPE
    estimated to be between 3500 to 4000 J/kg. Consequently, continued intensification of one or both supercells is anticipated over the
    next 1-2 hours with an increasing threat for very large hail -
    possibly upwards of 2-3 inches based on environmental analogs. While
    the environment currently features little effective SRH, some
    tornado threat will may emerge with the right split in the coming
    hours as east/southeastward motion becomes more prominent.

    ..Moore.. 04/26/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6k3j5IB7jVabOblRGTo98Q13dyg4K_WQcjVJu5R2Qfqhl6CgcFSnZNVlvxXA5XXaDDnbTXuoN= KjC9d3xq1ledrNqtMI$ for graphic product...

    ATTN...WFO...FWD...OUN...

    LAT...LON 33889736 33679747 33499772 33559807 33639842 33749875
    33919892 33989896 34129898 34389865 34449834 34449747
    34229735 33889736=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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