• MESO: Mesoscale Discussion 1638

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Aug 29 15:05:05 2021
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    ACUS11 KWNS 291504
    SWOMCD
    SPC MCD 291504=20
    ALZ000-FLZ000-MSZ000-LAZ000-291900-

    Mesoscale Discussion 1638
    NWS Storm Prediction Center Norman OK
    1004 AM CDT Sun Aug 29 2021

    Areas affected...southern Mississippi...southwest Alabama...western
    Florida Panhandle...parts of southeastern Louisiana

    Concerning...Tornado Watch 472...

    Valid 291504Z - 291900Z

    The severe weather threat for Tornado Watch 472 continues.

    SUMMARY...Tornadoes will remain possible with the stronger cells
    within outer convective bands.

    DISCUSSION...An initial band of storms continues to move northward
    across southern MS, southern AL, and the western FL Panhandle. The
    strongest cells continues to be across southern AL and into FL where
    there is access to more favorable boundary-layer theta-e. Farther
    northwest into MS and curling southwest across the LA state line, a
    region of cooler air exists which may be reducing tornado potential temporarily.

    With time, higher theta-e is expected to shift westward across
    southern MS and much of southeastern LA, along with increasing SRH.
    Additional bands of convection are expected to develop into the
    area, most likely emanating from the instability axis currently near
    and south of the AL/FL Panhandles where more robust bands of
    convection are currently situated.

    ..Jewell.. 08/29/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!oA2KFrAYwgnDevtSQbrbJsJU2ONEl4l1YazI-lBgXPAat-YTciEkNW_V3YnytAyxRabz5SY_$=
    for graphic product...

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

    LAT...LON 30229034 30529053 31059043 31519001 31788953 31858842
    31708787 31358727 30918711 30598702 30218705 30158771
    30258849 30348887 30248928 30128954 30229034=20



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