• MESO: Mesoscale Discussion 0139

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Feb 9 02:09:13 2023
    ACUS11 KWNS 090209
    SWOMCD
    SPC MCD 090208=20
    MSZ000-LAZ000-090345-

    Mesoscale Discussion 0139
    NWS Storm Prediction Center Norman OK
    0808 PM CST Wed Feb 08 2023

    Areas affected...Portions of southwest into south-central MS and
    southeast LA

    Concerning...Tornado Watch 32...

    Valid 090208Z - 090345Z

    The severe weather threat for Tornado Watch 32 continues.

    SUMMARY...The risk of damaging winds and a couple mesovortex
    tornadoes should increase during the next few hours.

    DISCUSSION...Latest radar data from KPOE shows an organizing north-south-oriented line segment tracking east-northeastward at
    around 50 mph over far southwest MS into southeast LA. Lower/middle
    60s dewpoints should continue to yield surface-based inflow for this
    line, while 50+ kt of midlevel flow oriented oblique to the
    leading-edge gust front should favor a continued organized/linear
    mode. Additional upscale growth/storm mergers downstream along with
    a strengthening pre-frontal low-level jet should support an
    increasing risk of damaging gusts. 50-70 mph gusts (some locally
    higher) are possible with any bowing/forward-propagating segments in
    the line. In addition, favorably curved low-level hodographs (per
    DGX VWP data) could also support a couple mesovortex tornadoes --
    especially in parts of the line that become oriented more SSE-NNW.

    ..Weinman.. 02/09/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!40GWIaFprRVP7SJlxggtJbY-NLOYhMi_bxfNts6GVBJt5Oj78eKy6Yu9xaZjrC_cBWpnJ7vmX= 8yZk3muOXwlUidgWUs$ for graphic product...

    ATTN...WFO...JAN...LIX...

    LAT...LON 31089139 31749127 32119113 32499075 32589020 32428985
    32068975 31039008 30519050 30489112 30709137 31089139=20


    =3D =3D =3D
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