• MESO: Mesoscale Discussion 0834

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sat May 23 07:01:24 2026
    ACUS11 KWNS 230701
    SWOMCD
    SPC MCD 230700=20
    TXZ000-230900-

    Mesoscale Discussion 0834
    NWS Storm Prediction Center Norman OK
    0200 AM CDT Sat May 23 2026

    Areas affected...Parts of south-central TX to the Middle TX Coast

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

    Valid 230700Z - 230900Z

    Probability of Watch Issuance...20 percent

    SUMMARY...An isolated strong-severe gust (55-65 mph) cannot be ruled
    out with an evolving band of storms during the next couple hours.

    DISCUSSION...A small band of thunderstorms has evolved about 50
    miles southeast of San Antonio TX, with recent echo tops approaching
    45-50 kft AGL. The pre-convective environment is characterized by
    fully modified Gulf moisture (middle/upper 70s dewpoints) and steep
    midlevel lapse rates (as sampled by the CRP 00Z sounding). This,
    combined with temperatures holding in the upper 70s F yielded a
    corridor of 3000 J/kg MLCAPE to the Middle TX Coast. This buoyancy
    and around 30 kt of line-orthogonal effective shear may support the continuation of this convective band to the coast, with an
    associated risk of an isolated strong-severe gust (55-65 mph).
    However, weak forcing for ascent and some low-level inhibition
    should tend to limit convective intensity/organization and the
    overall severe risk.

    ..Weinman/Smith.. 05/23/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_mWrp73MZ1DNPg3hMLnxNmCMUdRDqEDAkRS9cVdHHlH2Nf1pllqKerPGtlPpcP-A7Zqqsfbyr= ZTV9r0HsfTBe-bRBWE$ for graphic product...

    ATTN...WFO...HGX...CRP...EWX...

    LAT...LON 28309772 28589807 29049754 29549742 29679713 29679659
    29499611 29079594 28529616 28169658 28099697 28309772=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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