• MESO: Mesoscale Discussion 2213

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Nov 5 16:06:59 2024
    ACUS11 KWNS 051606
    SWOMCD
    SPC MCD 051606=20
    LAZ000-MSZ000-051700-

    Mesoscale Discussion 2213
    NWS Storm Prediction Center Norman OK
    1006 AM CST Tue Nov 05 2024

    Areas affected...much of Louisiana and into southwestern Mississippi

    Concerning...Severe potential...Watch possible=20

    Valid 051606Z - 051700Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Occasionally rotating storms are expected over the next
    few hours across parts of Louisiana and adjacent southwestern
    Mississippi, ahead of the advancing cold front. Current indications
    are that WW issuance will remain unnecessary.

    DISCUSSION...Latest observational data shows a cold front advancing
    across western Louisiana and far southeastern Texas at this time,
    with a band of generally weak convection along and behind the
    boundary. Meanwhile, with a very moist warm-sector boundary layer
    contributing to 500 to 1000 J/kg mixed-layer CAPE per RAP-based
    objective analysis, widely scattered pre-frontal storms have
    evolved, with a couple of the longer-lived updrafts exhibiting
    low-level rotation.

    Thus far, intensity of the updrafts and strength of rotation has
    remained somewhat limited generally -- suggesting only weak/brief
    tornado potential; a recent tornado has been reported but with a
    storm that is exhibiting only limited low-level rotation suggestive
    of limited tornado intensity. Given observed winds veering
    gradually with height but only moderate in magnitude, the
    current/limited degree of updraft rotation should be maintained.=20
    With that said, we will continue to monitor convective evolution
    over the next couple of hours, as an increase in coverage of the
    stronger updrafts could require closer examination of potential for
    WW issuance.

    ..Goss/Hart.. 11/05/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6b4kLWK91g84hae42ghKaPyu-RGm9LXLOXBKUgEnmWIdLKh-CO2g_OnCcb87H8GsJpObefXwL= IuVy8dwtG3ZEIr65uU$ for graphic product...

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

    LAT...LON 29829370 31299302 32729238 32969185 31619093 30109069
    29189116 29829370=20


    =3D =3D =3D
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