• MESO: Mesoscale Discussion 0465

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Apr 29 04:04:32 2021
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    ACUS11 KWNS 290404
    SPC MCD 290403=20

    Mesoscale Discussion 0465
    NWS Storm Prediction Center Norman OK
    1103 PM CDT Wed Apr 28 2021

    Areas affected...Centarl and Northeast Texas

    Concerning...Tornado Watch 121...122...

    Valid 290403Z - 290600Z

    The severe weather threat for Tornado Watch 121, 122 continues.

    SUMMARY...A severe threat is expected to continue into the early
    overnight hours from the Texas Hill Country north-northeastward into
    parts of northeast Texas. Large hail, wind damage and an isolated
    tornado threat will be possible with the stronger thunderstorms.

    DISCUSSION...The latest radar imagery from San Antonio and Fort
    Worth shows several strong to severe thunderstorms located from
    between Del Rio and San Antonio extending northward to near
    Stephenville, Texas. The storms are located along and just to the
    west of an inverted surface trough. The RAP shows an axis of
    moderate instability near the surface trough with MLCAPE estimated
    in the 2000 to 3000 J/kg range. WSR-88D VWPs near this axis of
    instability have 0-6 km shear in the 55 to 65 kt range. The
    instability and shear will likely keep the severe threat going late
    this evening into the early overnight period. Large hail and wind
    damage will be the primary threats with supercells that persist. An
    isolated tornado threat may also exist with any supercell that is

    ..Broyles.. 04/29/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!pLXxfnOCW7hVGvnE33wWC9m1fKkOwqpTN6_-NkUGxOcM0pOdtSEjcZQgLrrcHBmTZ1wE-OUO$=
    for graphic product...


    LAT...LON 28729844 28899794 29499740 30539656 31239619 32739587
    33279624 33249707 32749771 31649839 30319928 29379966
    28869907 28729844=20

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