• MESO: Mesoscale Discussion 0322

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Wed Apr 1 22:26:16 2026
    ACUS11 KWNS 012226
    SWOMCD
    SPC MCD 012225=20
    TXZ000-020030-

    Mesoscale Discussion 0322
    NWS Storm Prediction Center Norman OK
    0525 PM CDT Wed Apr 01 2026

    Areas affected...Parts of southwest Texas

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

    Valid 012225Z - 020030Z

    Probability of Watch Issuance...80 percent

    SUMMARY...The risk of severe storms capable of producing large hail
    and severe wind gusts will increase over the next few hours. A watch
    will be needed within the next hour or so.

    DISCUSSION...The latest visible satellite and radar data show a
    gradual increase in high-based convection developing on the
    immediate hot/dry side of the dryline extending across southwest TX.
    While it is unclear if these early storms will pose a substantial
    severe risk in the near term, a deeply mixed boundary layer and
    around 40 kt of midlevel west-southwesterly flow orthogonal to the
    dryline could promote a couple severe downburts and sporadic large
    hail with any storms that mature. With time, additional storm
    development is expected as modest large-scale ascent influences the
    area and enhances surface convergence along the dryline.
    Elongating/mostly straight hodographs (effective shear increasing to
    around 50 kt) and steep deep-layer lapse rates/moderate
    surface-based buoyancy should support a mix of semi-discrete
    supercells and clusters with a risk of large to very large hail and
    severe wind gusts. With time, these storms should grow upscale and
    pose a continued/increasing risk of scattered severe winds. While
    less likely, a tornado or two will also be possible as storms
    intercept a strengthening nocturnal low-level jet this
    evening/overnight. A watch will likely be needed within the next
    hour or so.

    ..Weinman/Leitman.. 04/01/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4xkJ9KBUFcuTu4efWPozYWh8z4oJ_yryh37o0GfR-pXNEvI8ekWXCDUb6cJYv2l1s77BiFfUw= rK5bS5hJN4dNKKBRsA$ for graphic product...

    ATTN...WFO...EWX...SJT...LUB...MAF...

    LAT...LON 30710247 31280220 32680128 32980071 33090007 32979954
    32569930 31759948 30290075 29890145 29850220 30110252
    30710247=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.28-Linux
    * Origin: Capitol City Online (1:2320/107)