• MESO: Mesoscale Discussion 1272

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tuesday, June 23, 2026 17:21:30
    ACUS11 KWNS 231721
    SWOMCD
    SPC MCD 231721=20
    TXZ000-OKZ000-231915-

    Mesoscale Discussion 1272
    NWS Storm Prediction Center Norman OK
    1221 PM CDT Tue Jun 23 2026

    Areas affected...Western Oklahoma into northwest Texas and the far
    eastern Texas Panhandle

    Concerning...Severe Thunderstorm Watch 380...

    Valid 231721Z - 231915Z

    The severe weather threat for Severe Thunderstorm Watch 380
    continues.

    SUMMARY...A corridor of higher severe hail and wind potential may
    persist for the next few hours as storms begin to approach the Red
    River. Local expansion of WW 380 may be needed.

    DISCUSSION...Over the past hour, an initial line of thunderstorms
    has devolved into a pair of loosely organized supercells. Based on
    recent MRMS data, these cells remain capable of producing large hail
    with at least a couple of reports of one-inch hail noted over the
    past 1-2 hours. Latest high-res guidance continues to handle this
    convection poorly, which casts some uncertainty onto storm evolution
    into the mid/late afternoon hours. However, these cells are
    approaching the regional buoyancy axis where MLCAPE is increasing to
    near 3000 J/kg. Latest VWP observations from KFDR sampled 0-6 km BWD
    values on the order of 25-30 knots, which is slightly lower than
    depicted by recent mesoanalyses (30-35 knots). Given a downstream
    environment with increasing buoyancy but slightly diminishing
    mid-level flow/deep-layer wind shear with southward extent, some
    uptick in updraft intensity appears likely, but it is unclear how well-organized convection will be beyond the next couple of hours.
    Nonetheless, some local extensions of WW 380 will be necessary as
    storms approach the Red River.

    ..Moore.. 06/23/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4uLt90f1NTq3ViP0wpaorKct5wf-QFX-_XQ2QHmlL81pwFcdMpP_35nbriDlhYJIapc7R5CSu= kAywm3AbgGUfjH6CS0$ for graphic product...

    ATTN...WFO...OUN...LUB...AMA...

    LAT...LON 35630064 35880047 35970017 35989990 35809970 34289883
    34059881 33869903 33819940 33809987 33840045 34010063
    35630064=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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