• MESO: Mesoscale Discussion 1826

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Oct 11 03:17:01 2021
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    ACUS11 KWNS 110316
    SPC MCD 110316=20

    Mesoscale Discussion 1826
    NWS Storm Prediction Center Norman OK
    1016 PM CDT Sun Oct 10 2021

    Areas affected...north and northeast Texas...southeast
    Oklahoma...and far southwest Arkansas

    Concerning...Tornado Watch 518...

    Valid 110316Z - 110415Z

    The severe weather threat for Tornado Watch 518 continues.

    SUMMARY...A line of severe thunderstorms continues to move east
    across north Texas and southeast Oklahoma this evening. Very strong,
    damaging winds, large hail, and tornadoes remain possible.

    DISCUSSION...Thunderstorms continue to move east across north Texas
    and south Oklahoma this evening. These thunderstorms have a history
    of producing severe, damaging winds, with several measured wind
    reports of 60-70 mph across the greater Dallas-Fort Worth metro,
    including a 70 mph wind at DFW, were recorded within the last hour.
    The strong wind fields conducive to these severe thunderstorm winds
    will also be capable of producing tornadoes along the leading edge
    of the squall line, especially where kinks in the line occur. Given
    the very moist, unstable airmass and strong kinematic fields across
    the area, the severe threat will continues.=20

    Farther east, across northeast Texas and southwest Arkansas, more
    uncertainty exists as to the magnitude of the severe potential.
    Here, instability is weaker than farther west and will be farther
    removed from the stronger influence of the lifting mid-level trough.
    However, the level of organization of the ongoing storms, and a
    couple more hours of theta-e advection may support an extension of
    the severe risk into this area. Conditions here, downstream of
    Tornado Watch #518, continue to be monitored for possible watch
    issuance this evening.

    ..Marsh.. 10/11/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!uxm-tC_MJrx00TdF1LHmOKQXpXkWksVN9O-biQSBUFDeK9C-K8cCPJt1i59Rx520Kf2YREcr$=
    for graphic product...


    LAT...LON 31209831 32089755 33189713 34169671 34819657 34929613
    34809418 34169412 32629404 32239454 31639559 30739704

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