• MESO: Mesoscale Discussion 0361

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sat Apr 4 22:40:38 2026
    ACUS11 KWNS 042240
    SWOMCD
    SPC MCD 042240=20
    MSZ000-LAZ000-ARZ000-TXZ000-050045-

    Mesoscale Discussion 0361
    NWS Storm Prediction Center Norman OK
    0540 PM CDT Sat Apr 04 2026

    Areas affected...portions of southeastern Texas into the lower
    Mississippi River Valley

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

    Valid 042240Z - 050045Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Scattered to numerous thunderstorms are expected to
    continue across much of southeastern Texas and the lower Mississippi
    River Valley over the next few hours. A strong wind gust or two is
    possible.

    DISCUSSION...Regional radar imagery depicts scattered to numerous
    thunderstorms ongoing from southeastern Texas into northern/central
    Louisiana and much of western Mississippi. Surface temperatures in
    the upper-70s to lower-80s and dewpoints in the mid-60s to near 70 F
    are supporting moderate buoyancy of 1000-1500 J/kg MLCAPE. Moderate mid/upper-level flow is supporting only 20-30 kts of effective bulk
    shear, which is expected to limit storm organization through this
    evening. Given only modest low-level lapse rates of 6.5-7.0 C/km,
    the potential for strong wind gusts appears low, yet an isolated
    wind gust or two in the 45-55 mph range is possible. The greatest
    area of potential for a strong gust or two appears to be from
    northeastern Louisiana into central Mississippi where a weak
    mid-level disturbance is supporting locally greater effective shear
    (up to 35 kts per latest mesoanalysis), which promotes marginal
    storm organization. Given the limited nature of severe potential,
    watch issuance is unlikely.

    ..Chalmers/Smith.. 04/04/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4EtLOuEc3h_LprYy5P3YQ3ITG61zUZ2Me49b3KWatzHdfvSTl4yg6x3UkZJbVkLbwx4DFvgHS= QtFK_5oabM2HMRm6Xs$ for graphic product...

    ATTN...WFO...MEG...JAN...LIX...LCH...SHV...HGX...

    LAT...LON 29659581 30419535 31339433 32499237 33209119 33709039
    34058992 34368899 33988849 33318850 32378864 31678911
    30968963 30339017 30149188 29779425 29459497 29429547
    29519573 29659581=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/107)