• MESO: Mesoscale Discussion 0180

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Mar 9 18:12:26 2026
    ACUS11 KWNS 091812
    SWOMCD
    SPC MCD 091812=20
    MSZ000-LAZ000-TXZ000-092015-

    Mesoscale Discussion 0180
    NWS Storm Prediction Center Norman OK
    0112 PM CDT Mon Mar 09 2026

    Areas affected...Parts of LA into southwest MS

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

    Valid 091812Z - 092015Z

    Probability of Watch Issuance...20 percent

    SUMMARY...A couple strong to severe storms may pose a risk of
    damaging gusts, marginal hail, and perhaps a localized/brief tornado
    risk.

    DISCUSSION...Within a zone of broad/weak low-level warm advection in southern/central LA, diurnal heating amid lower 70s dewpoints is
    aiding in destabilization and removal of inhibition. As a result, a
    modest uptick in thunderstorm strength and coverage has occurred
    over the last 30 minutes or so. While the lingering inhibition and
    generally weak large-scale forcing for ascent cast uncertainty on
    thunderstorm intensification/longevity, around 30-40 kt of effective
    shear (stronger with northward extent) and small clockwise-curved
    low-level hodographs may support a couple loosely organized storms
    through the afternoon. The stronger/longer-lived storms will pose a
    risk of locally damaging gusts and marginally severe hail, though
    the moist boundary layer and low-level streamwise vorticity may
    support a localized/brief tornado risk as well. Current thinking is
    that the severe risk will remain too localized for a watch, though
    trends are being monitored.

    ..Weinman/Thompson.. 03/09/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-WvDGRxzrRZQLI3XyfNhUNZc9ZXa5FZgEm5tm4-r2oBnt6NAPBdwYS_jlhMUCst6FtY_JufYI= E0x9Z3aT89AU30WOLA$ for graphic product...

    ATTN...WFO...JAN...LIX...LCH...SHV...

    LAT...LON 30829390 31129382 31549363 32029315 32569198 32579101
    32429025 32158998 31858993 31489003 31009053 30439229
    30389313 30509363 30829390=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 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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