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  • MESO: Mesoscale Discussion 0515

    From COD Weather Processor@1:2320/107 to [email protected] on Fri Apr 24 07:00:39 2026
    ACUS11 KWNS 240700
    SWOMCD
    SPC MCD 240700=20
    MOZ000-ARZ000-OKZ000-240830-

    Mesoscale Discussion 0515
    NWS Storm Prediction Center Norman OK
    0200 AM CDT Fri Apr 24 2026

    Areas affected...Southern Missouri...northwest Arkansas and
    northeast Oklahoma

    Concerning...Severe Thunderstorm Watch 140...

    Valid 240700Z - 240830Z

    The severe weather threat for Severe Thunderstorm Watch 140
    continues.

    SUMMARY...A line of strong-isolated severe storms will persist for
    the next couple of hours while spreading eastward across southern
    Missouri and southeastward across northeast Oklahoma and northwest
    Arkansas.

    DISCUSSION...Convection has evolved into an extensive line across
    north central and northeast OK into southwest MO and extreme
    northwest AR. The more north-south part of the line in southwest MO
    is oriented more orthogonal to the deep-layer shear vectors,
    suggesting upright convection may remain closely tied to the leading
    edge of the cold pool. Severe potential will persist in the
    corridor where the north-south segment intersects the more east-west
    outflow, though decreasing buoyancy with eastward extent casts some
    doubt on the duration and magnitude of the severe threat. Farther
    west, an extensive cold pool has sagged south of the primary
    convection in OK, where a 50+ kt low-level jet is supporting renewed
    storm development atop the cold pool. Overall, the magnitude of the
    wind/hail threat should slowly decrease over time.

    ..Thompson.. 04/24/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7YM9qFHlKAhpF2quk7OkdSZsJW90ULeI8V24hmU9Ssdf1MaRYqC0qxKkXQHnnU07lusuXT4hT= zvDJTBbH9zaMRKMIsk$ for graphic product...

    ATTN...WFO...LZK...SGF...TSA...

    LAT...LON 35819253 35509365 35339455 35309522 35459609 35629640
    35899642 36169538 36459424 36879352 37549316 37699286
    37759211 37579169 36689162 35819253=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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