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  • MESO: Mesoscale Discussion 2136

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Sep 11 05:54:41 2023
    ACUS11 KWNS 110554
    SWOMCD
    SPC MCD 110554=20
    OKZ000-TXZ000-110800-

    Mesoscale Discussion 2136
    NWS Storm Prediction Center Norman OK
    1254 AM CDT Mon Sep 11 2023

    Areas affected...Eastern TX Panhandle...TX South Plains...Southwest
    OK

    Concerning...Severe Thunderstorm Watch 681...

    Valid 110554Z - 110800Z

    The severe weather threat for Severe Thunderstorm Watch 681
    continues.

    SUMMARY...Isolated strong to severe gusts will remain possible for
    the next few hours.

    DISCUSSION...Regional radar imagery shows an eastward-progressing
    convective line extending from Gray and Wheeler Counties in the
    eastern TX Panhandle southwestward to Lubbock and Lynn Counties in
    the TX South Plains. Strongest updrafts, as evidenced by echo tops,
    are over the northern portion of the line in the vicinity of Hall
    County TX. Storm motion is estimated at 30 to 35 kt, taking it to
    the TX Panhandle/western OK border between 0600Z and 0630Z. Several
    severe wind gusts have been observed with this line, including a significant-severe wind gust of 83 mph in Gray County TX at 0514Z.

    Buoyancy drops off significantly across western OK, and the general
    expectation is for the overall updraft intensity to diminish with
    continued eastward progression. Even so, given the warm and dry
    sub-cloud environment and associated negative buoyancy, isolated
    strong to severe gusts will remain possible for the next hour or
    two. Strong updrafts may persist a bit longer within the southern
    portion of the line, where more buoyancy remains in place to the
    east of the line. Isolated gusts will remain possible within this
    portion of the line as well.

    ..Mosier.. 09/11/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-TKl3hJBP9sKMSRA8mN_A3CHo6tW2OhNbyToZDdBUXe9czKHkxIyAKb214w9yW2A9ecWBchbk= oc0EXsUKkp-56A2kSI$ for graphic product...

    ATTN...WFO...OUN...LUB...AMA...

    LAT...LON 35889996 35839962 35349897 34609909 33170034 33080199
    33850118 34670066 35410045 35750022 35889996=20


    =3D =3D =3D
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