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  • MESO: Mesoscale Discussion 0521

    From COD Weather Processor@1:2320/107 to [email protected] on Fri Apr 24 22:30:47 2026
    ACUS11 KWNS 242230
    SWOMCD
    SPC MCD 242230=20
    ARZ000-LAZ000-TXZ000-OKZ000-250100-

    Mesoscale Discussion 0521
    NWS Storm Prediction Center Norman OK
    0530 PM CDT Fri Apr 24 2026

    Areas affected...from southeast Oklahoma into the ArkLaTex area

    Concerning...Tornado Watch 141...

    Valid 242230Z - 250100Z

    The severe weather threat for Tornado Watch 141 continues.

    SUMMARY...A narrow corridor of tornado risk is evident over
    southeast Oklahoma, with threat expanding southeastward toward the
    ArkLaTex this evening. Damaging winds and hail will also be likely.

    DISCUSSION...Severe storms persist near the synoptic cold front from
    south of Ft. Smith into southeast OK. Intersecting this front is an
    outflow boundary which is pushing west/southwest out of AR and into
    northeast TX and northern LA. This same boundary appears to be
    hanging up over southeast OK ahead of the severe storms.

    The tornadic supercell over southern Pittsburg County is moving
    toward Pushmataha County, which is near the intersecting boundaries.
    Low-level shear in this area, as well as into northeast TX/southwest
    AR is sufficient to support tornadoes with 0-1 SRH over 100 m2/s2.
    The air mass is very moist and unstable, with deep-layer shear
    around 50 kt aiding storm longevity.=20

    As such, these cells may continue to pose a tornado risk as they
    interact with the outflow boundary to the southeast. Other cells to
    the west may contain hail and damaging winds, with cells north of
    the outflow also producing hail into AR.

    ..Jewell.. 04/24/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-6VhQt9h4i1kJzQJg_cxkPJfEqjP4kyDOC9m_Ny8BAqKldoVvPLm_O8PUNIrF2P4atNhkYU3e= vTZaABjQ4fszr2AgdE$ for graphic product...

    ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

    LAT...LON 34899540 34899424 34559360 33949313 33159273 32439315
    32369383 32479429 32999543 33229651 33609704 34149716
    34469676 34899540=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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