• MESO: Mesoscale Discussion 0398

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Apr 9 18:52:44 2024
    ACUS11 KWNS 091852
    SWOMCD
    SPC MCD 091852=20
    LAZ000-TXZ000-092015-

    Mesoscale Discussion 0398
    NWS Storm Prediction Center Norman OK
    0152 PM CDT Tue Apr 09 2024

    Areas affected...Portions of east TX into western/northern LA

    Concerning...Tornado Watch 94...

    Valid 091852Z - 092015Z

    The severe weather threat for Tornado Watch 94 continues.

    SUMMARY...Some threat for damaging winds and perhaps a couple
    tornadoes may continue eastward into east Texas and western/northern
    Louisiana. A downstream watch is being considered.

    DISCUSSION...A small bowing cluster/MCV has recently developed
    across east-central TX along or perhaps just north of the surface
    boundary. Gradual airmass recovery is occurring downstream across
    east TX into western/northern LA, where surface temperatures have
    mostly warmed into the 70s amid persistent easterly near-surface
    flow. Weak MLCAPE coupled with strong deep-layer shear may be
    sufficient for continued organization to the small cluster as it
    moves eastward through the rest of the afternoon. Assuming
    sufficient destabilization can occur to support truly surface-based
    convection, then damaging winds may be the primary severe threat.
    Sufficient low-level shear is also present along the boundary to
    support an isolated tornado threat, especially if any supercells can
    develop ahead of the ongoing cluster. Depending on convective
    trends, a downstream watch may be needed for parts of east TX into western/northern/LA.

    ..Gleason/Thompson.. 04/09/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9MBNMR9N--kYCbEX988h5kmO7J0o5GUG3hUyVF_GGrzppBUIybmgLS7EihLHjoSx3hOM93-Ws= gOlM7kXk6t8b_1k8ks$ for graphic product...

    ATTN...WFO...LCH...SHV...HGX...FWD...

    LAT...LON 32149585 32399522 32449274 32239212 31499206 31289244
    31109442 31269615 31669589 32149585=20


    =3D =3D =3D
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