• MESO: Mesoscale Discussion 0661

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thursday, May 07, 2026 01:14:09
    ACUS11 KWNS 070114
    SWOMCD
    SPC MCD 070113=20
    ALZ000-MSZ000-070315-

    Mesoscale Discussion 0661
    NWS Storm Prediction Center Norman OK
    0813 PM CDT Wed May 06 2026

    Areas affected...southeastern Mississippi into central/southern
    Alabama

    Concerning...Tornado Watch 187...

    Valid 070113Z - 070315Z

    The severe weather threat for Tornado Watch 187 continues.

    SUMMARY...Threat for large hail and tornadoes continues within WW186
    and WW187.

    DISCUSSION...Along and south of the cold front in central Alabama,
    supercells have produced large to very large hail (up to 2.75
    inches). This threat will likely continue over the next couple of
    hours, given strong deep layer shear and MLCAPE around 1000-1500
    J/kg.

    The increase of the LLJ has been noted across southern Mississippi
    over the last couple of hours, with notable increase in supercell
    intensity. Guidance suggests that through time, the 40-50 kt LLJ
    will increase and move northeastward into southern Alabama over the
    next several hours. Mature supercells coming out of Mississippi may
    continue to pose a risk for tornadoes into Alabama as a result.
    Cells along the front may tend to grow upscale into clusters but
    will still pose some risk for line embedded circulations and
    potentially tornadoes.

    ..Thornton.. 05/07/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7sTE52YQhfp6UsAD9VALKw5ny97duoYy4cwrCcd8_o82_-1eCRcf6XF7Lelp5Rac7X8O_Bxid= OQmfMb-IlioA2Ehtdc$ for graphic product...

    ATTN...WFO...BMX...MOB...JAN...

    LAT...LON 32178943 33168877 33688738 33728651 33108588 32528592
    31888602 31378660 31308818 31288887 31388926 32178943=20

    MOST PROBABLE PEAK TORNADO INTENSITY...120-145 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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