• MESO: Mesoscale Discussion 1668

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 21 20:23:51 2023
    ACUS11 KWNS 212023
    SWOMCD
    SPC MCD 212023=20
    GAZ000-ALZ000-MSZ000-212230-

    Mesoscale Discussion 1668
    NWS Storm Prediction Center Norman OK
    0323 PM CDT Fri Jul 21 2023

    Areas affected...East-Central Mississippi...Central Alabama...and
    West-Central Georgia

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

    Valid 212023Z - 212230Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Severe threat increasing. A watch may be needed in the
    next couple of hours.

    DISCUSSION...Convective development has been ongoing across portions
    of eastern Mississippi, central Alabama, and western Georgia.
    Daytime heating and dew points in the mid to upper 70s have led to
    MLCAPE around 2500-3000 J/kg. Initial cell development will be
    capable of damaging downburst winds given weak shear profiles and
    the very hot and unstable air-mass. A line of storms was ongoing
    across northern Mississippi/southern west Tennessee. This line has
    produced wind damage and gusts as high as 50-55 mph. It will
    continue eastward with potential for the southern flank of this line
    to effect the aforementioned region later this afternoon. A watch
    may be needed in the next couple of hours.

    ..Thornton/Hart.. 07/21/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9cuXognvxk7XySL_2uUKGexX51o-fn3N0XOE4PG0sCcctS3E-ZFlUyAHOlF5Ut7N_C6mjd-Ru= Vkqzd-5MbEktO4rt5E$ for graphic product...

    ATTN...WFO...FFC...BMX...HUN...MEG...JAN...

    LAT...LON 33878877 34038857 34168823 34188754 34238681 34168611
    34188565 34168525 33978485 33738479 33508497 33298514
    33188525 33108543 32998578 32948604 32898625 32878651
    32908692 32908703 32938733 32968757 33058782 33138799
    33188813 33258829 33328839 33428848 33558855 33688863
    33818876 33878877=20


    =3D =3D =3D
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