• MESO: Mesoscale Discussion 1258

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Jun 22 20:21:25 2026
    ACUS11 KWNS 222021
    SWOMCD
    SPC MCD 222020=20
    GAZ000-TNZ000-ALZ000-222145-

    Mesoscale Discussion 1258
    NWS Storm Prediction Center Norman OK
    0320 PM CDT Mon Jun 22 2026

    Areas affected...northern AL and southern Middle TN

    Concerning...Severe Thunderstorm Watch 374...

    Valid 222020Z - 222145Z

    The severe weather threat for Severe Thunderstorm Watch 374
    continues.

    SUMMARY...Strong/damaging wind gust potential may be increasing
    across northern Alabama into southern Middle Tennessee over the next
    1-2 hours.

    DISCUSSION...A dense cluster of convection over northern AL/southern
    Middle TN has shown some signs of intensification recently. If this
    area of convection can consolidate further, damaging wind potential
    will increase in the short term. This activity is occurring within a
    favorably shear environment, characterized by 35 kt 0-6 km effective
    shear and around 200 m2/s2 0-1 km SRH. Radar velocity signatures
    have also increased both in intensity and with some middle rotation
    noted. Greater forward propagation of this cluster may be underway
    and an ensuing risk of severe wind gusts may occur soon. If this
    evolution unfolds, a downstream watch may be needed.

    ..Leitman.. 06/22/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-qlI8j1a4B98YNsPD4KXdP9iIVSftw5fTSC_HzZjyk-Mmu9Z4crWbOSHFCiRm8ZtT9tz36xe_= trnO_kNcwkf-5odQNw$ for graphic product...

    ATTN...WFO...MRX...FFC...OHX...BMX...HUN...

    LAT...LON 35108721 35448505 35338455 34938435 34558461 34308536
    34188580 34138696 34138747 34328762 34738758 34908754
    35108721=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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