• MESO: Mesoscale Discussion 1267

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tuesday, June 23, 2026 05:52:27
    ACUS11 KWNS 230552
    SWOMCD
    SPC MCD 230551=20
    TXZ000-OKZ000-230915-

    Mesoscale Discussion 1267
    NWS Storm Prediction Center Norman OK
    1251 AM CDT Tue Jun 23 2026

    Areas affected...southern into southwest Oklahoma across the Red
    River into far northern Texas

    Concerning...Severe potential...Watch unlikely=20

    Valid 230551Z - 230915Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Storms may increase in coverage across southern Oklahoma
    into parts of far northern Texas across the Red River. A few storms
    may become severe with locally large hail.

    DISCUSSION...Scattered storms have developed within a zone of weak
    theta-e advection at 850 mb, from southwest OK into northeast TX.
    Rich boundary layer moisture as well as overall strong instability
    exists in this region, along with effective deep-layer shear of
    35-40 kt. Area VWPs indicate 850 winds out of the south/southeast at
    around 25 kt, aiding lift across the warm advection zone. Models
    suggest low-level winds will veer and strengthen tonight, which may
    briefly increase ascent through about 10Z. Slow-moving cells with
    periodic hail cores and heavy rain are expected. Given high PWAT
    environment, localized strong downbursts may occur as well.

    ..Jewell/Gleason.. 06/23/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_pVVlw1YhQe5PM6C7XXXslV5lCfDx23YHVPLHGWy8NieQuGQnu_KqWLNt73xwa4POVsl-9wD4= as7iLWrghey_dOgaag$ for graphic product...

    ATTN...WFO...SHV...TSA...FWD...OUN...LUB...AMA...

    LAT...LON 33619781 33829949 34000001 34240023 34640027 34950021
    35309986 35419912 35289852 34999805 34689723 34269579
    33989482 33759454 33379448 33139485 33349608 33619781=20

    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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