• MESO: Mesoscale Discussion 0759

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu May 27 04:26:41 2021
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    ACUS11 KWNS 270426
    SPC MCD 270426=20

    Mesoscale Discussion 0759
    NWS Storm Prediction Center Norman OK
    1126 PM CDT Wed May 26 2021

    Areas affected...Parts of the Texas Panhandle and western/northern
    Oklahoma into southeastern Kansas

    Concerning...Tornado Watch 211...

    Valid 270426Z - 270530Z

    The severe weather threat for Tornado Watch 211 continues.

    SUMMARY...A couple of lingering thunderstorms clusters may pose
    continuing potential for strong surface gusts into the Midnight-2 AM
    CDT time frame, but a general weakening of storms is expected to
    proceed and a new severe weather watch does not appear needed.

    DISCUSSION...Storms which generally initiated along the dryline have
    either dissipated or consolidated into a couple of widely scattered
    lingering clusters, ahead of lower/mid-tropospheric troughing
    gradually shifting east of the Rockies into the Great Plains. This
    activity is currently near the eastern periphery of a southerly 850
    mb jet, which has strengthened to 35-40+ kt, but is otherwise
    embedded within fairly modest (20-30 kt) southwesterly deep-layer
    ambient mean flow. While potential inflow of moist air
    characterized by sizable CAPE appears possible another couple of
    hours, as activity progresses eastward, the strength of the inflow
    may begin to weaken. Latest MRMS CAPPI data suggest that weakening
    trends are already underway, and this seems likely to continue.

    ..Kerr.. 05/27/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!p_gl_UAxFxaAVqvEdR5rsCztgipFjLiXMZfL-FV5w1xynrhlhHJRfuuzI5Yd1vhQvgaDiqir$=
    for graphic product...


    LAT...LON 33900255 34570216 35370134 36519945 37869740 37779648
    37039549 35529768 33820045 33560176 33900255=20

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