• MESO: Mesoscale Discussion 2157

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Sep 16 13:52:09 2023
    ACUS11 KWNS 161352
    SWOMCD
    SPC MCD 161351=20
    TXZ000-161515-

    Mesoscale Discussion 2157
    NWS Storm Prediction Center Norman OK
    0851 AM CDT Sat Sep 16 2023

    Areas affected...central Texas

    Concerning...Severe Thunderstorm Watch 685...

    Valid 161351Z - 161515Z

    The severe weather threat for Severe Thunderstorm Watch 685
    continues.

    SUMMARY...A couple of strong to severe gusts may persist another 1-2
    hours before thunderstorms weaken. A downstream watch is not
    currently expected.

    DISCUSSION...An overall weakening trend has been observed over the
    past 30-60 minutes with a bowing cluster of storms moving across the
    Concho Valley/central TX. Much of the trailing convection to the south/southwest of the apex has decreased in intensity
    substantially. However, a 44 kt gust was reported at SJT about an
    hour ago, and a gust to 64 kt was reported at the West Texas Mesonet
    site at Doole about 30 minutes ago.=20

    The overall expectation is that convection will continue to weaken
    in a modestly unstable airmass characterized by weak vertical shear,
    poor lapse rates, and decreasing warm advection as storms continue
    to shift east/southeast. A couple of strong/severe gusts near the
    apex may persist in the short term, but a downstream watch is not
    currently expected.

    ..Leitman.. 09/16/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6Bv5Eam4E4BgCfbwyZQ7t_8gb-hgkQxb92L74bFx3lBrHfMl9NhETS3a-tyD8RAT8DZztTcKf= 0EGslb2AO9FQS8EVIg$ for graphic product...

    ATTN...WFO...FWD...EWX...SJT...

    LAT...LON 31809954 31779830 31149773 30679779 30349811 30289896
    30569958 30930000 31209999 31519986 31809954=20


    =3D =3D =3D
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