• MESO: Mesoscale Discussion 0606

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tue Apr 28 22:53:00 2026
    ACUS11 KWNS 282252
    SWOMCD
    SPC MCD 282252=20
    ARZ000-TXZ000-OKZ000-290045-

    Mesoscale Discussion 0606
    NWS Storm Prediction Center Norman OK
    0552 PM CDT Tue Apr 28 2026

    Areas affected...Much of Arkansas...northwest Louisiana...Northeast Texas...Southeast Oklahoma

    Concerning...Tornado Watch 170...177...

    Valid 282252Z - 290045Z

    The severe weather threat for Tornado Watch 170, 177 continues.

    SUMMARY...Multiple clusters of thunderstorms will track into western
    AR this evening, with coverage of other storms increasing toward
    sunset.

    DISCUSSION...Three distinct clusters of severe/supercell storms are
    present this afternoon over OK/AR. One is southeast of FYV, one
    near FSM, and a third near IDA. These storms will track eastward
    for several more hours into a very moist and moderately unstable air
    mass. Forecast soundings and the LZK VAD profile suggest sufficient
    low-level and deep-layer shear for continued supercell storm
    structures and a risk of all severe modes. The low-level jet is
    expected to strengthen this evening around dusk, resulting in
    increased coverage of storms, and increasing the risk of a few
    tornadoes.

    New tornado watch #177 has just been issued for this area until 06z.

    ..Hart.. 04/28/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!54q-h9gg7BTCv9tDKx_6awxyDR9r6-G_5cQDHpAbZADWIBRFWUM6ueLcjZVE8MU-MRcbD6RyS= 02MdPS5MV9fZnqo7uQ$ for graphic product...

    ATTN...WFO...LZK...SHV...TSA...

    LAT...LON 34209505 35129443 35939393 36499289 36279228 34989251
    33629335 33059468 33289520 33739527 34209505=20

    MOST PROBABLE PEAK TORNADO INTENSITY...120-145 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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