• MESO: Mesoscale Discussion 1108

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 26 06:54:22 2021
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    ACUS11 KWNS 260654
    SPC MCD 260653=20

    Mesoscale Discussion 1108
    NWS Storm Prediction Center Norman OK
    0153 AM CDT Sat Jun 26 2021

    Areas affected...Northwest Texas...Southwest and Central Oklahoma

    Concerning...Severe Thunderstorm Watch 320...

    Valid 260653Z - 260800Z

    The severe weather threat for Severe Thunderstorm Watch 320

    SUMMARY...An isolated wind-damage threat is expected to continue for
    another one or two hours. However, the threat should be too marginal
    to warrant the issuance of a new watch. If it appears the severe
    threat will to linger beyond the 3 am CDT expiration of WW 320, a
    local extension could be issued.

    DISCUSSION...The latest high-resolution radar from Frederick,
    Oklahoma and Amarillo show a broken line of strong thunderstorms
    ongoing from 35 statute miles south-southwest of Amarillo arching
    into the far southeast Texas Panhandle and western Oklahoma. The
    storms are located along and just ahead of a cold front but behind
    an outflow boundary. Surface dewpoints are in the mid to upper 60s
    F. This is contributing to about 1000 J/kg of MLCAPE according to
    the RAP. In addition, the WSR-88D VWP from Amarillo has 0-6 km shear
    near 50 kt suggesting that a severe threat could persist for a
    couple more hours. Wind damage would be the primary severe hazard.
    As instability continues to weaken, the potential for wind damage
    should become increasingly marginal. For this reason, new watch
    issuance will not be needed beyond the 3 am CDT expiration of WW

    ..Broyles.. 06/26/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!uJBdTrbZ2bBgUPFnFraq34ivsRFMweXHbSpCuvZKzmL3DlqQWMKzlHcJ9RsCNcejSptCKRPQ$=
    for graphic product...


    LAT...LON 35619919 35049975 34650119 34360141 34160127 34060060
    33999958 34299844 34889777 35799773 36189798 36129843
    35959876 35619919=20

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