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  • MESO: Mesoscale Discussion 0621

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Wed Apr 29 20:02:44 2026
    ACUS11 KWNS 292002
    SWOMCD
    SPC MCD 292002=20
    ALZ000-MSZ000-LAZ000-292200-

    Mesoscale Discussion 0621
    NWS Storm Prediction Center Norman OK
    0302 PM CDT Wed Apr 29 2026

    Areas affected...northeast Louisiana...central and southern
    Mississippi...and southwest Alabama

    Concerning...Severe Thunderstorm Watch 181...

    Valid 292002Z - 292200Z

    The severe weather threat for Severe Thunderstorm Watch 181
    continues.

    SUMMARY...The potential for more widespread wind damage is expected
    to increase across portions of central and southern Mississippi into
    southwest Alabama over the next 2-3 hours.

    DISCUSSION...A west-to-east-oriented band of strong to severe storms
    is ongoing just south of the I-20 corridor in MS and northeast LA as
    of 20z. Occurrences of hail to 1" and thunderstorm wind damage have
    been reported in the Jackson, MS vicinity within the past hour.
    Additional elevated storms ongoing to the west of the watch area
    across northern LA are expected to merge with the predominant band
    of storms over the next hour, which should enhance overall cold pool
    strength. That process may lead to an accelerated southeastward
    motion of the convective band from central into southern MS and
    southwest AL with an attendant risk for more widespread damaging
    winds.=20

    Isolated occurrences of large hail will remain possible, especially
    on the western flank of the convective system where mid-level lapse
    rates are steeper.

    ..Mead.. 04/29/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9IeeR9CDqCU-fJgIT0T08WegIQi-pjTl_oyeMqJXzDTqmP-4MNrV2wnb-TvOcBFboOYvSr1ib= jZdkjZ4fpUZ6JOIidA$ for graphic product...

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

    LAT...LON 32069181 32549174 32809096 32718925 32598742 31718710
    31098772 30768818 30738956 30819015 31099097 31389169
    32069181=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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