• MESO: Mesoscale Discussion 0578

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Apr 27 21:55:00 2025
    ACUS11 KWNS 272154
    SWOMCD
    SPC MCD 272154=20
    MSZ000-ARZ000-272330-

    Mesoscale Discussion 0578
    NWS Storm Prediction Center Norman OK
    0454 PM CDT Sun Apr 27 2025

    Areas affected...Parts of northern and central Mississippi

    Concerning...Severe potential...Watch unlikely=20

    Valid 272154Z - 272330Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Risk of isolated severe hail and locally damaging gusts
    will persist for another couple hours.

    DISCUSSION...Radar data from GWX shows a recent uptick in
    thunderstorm intensity along/ahead of a weak boundary draped across
    the Mid-South, including a couple discrete supercellular structures.
    These storms are evolving in a warm/moist boundary layer with around
    2500 J/kg MLCAPE and 30 kt of effective shear. Isolated severe hail
    and locally damaging gusts will remain possible with this activity,
    before nocturnal cooling stabilizes the boundary layer into the
    evening. Given the localized nature of the threat, a watch is not
    expected.

    ..Weinman/Guyer.. 04/27/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!75japZYxTLucrWYGnjUJb8kARmWlWQxbLNfyipmUTwSYJwENqVNT8eEU2KY6R1YJtxyWjqcRq= Tx2-pNix_ClPY6IyoE$ for graphic product...

    ATTN...WFO...MEG...JAN...LZK...

    LAT...LON 34009118 34349041 34588948 34528921 34208880 33618859
    33348886 33118947 33039061 33299115 33529133 33789135
    34009118=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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