• MESO: Mesoscale Discussion 1634

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Aug 29 00:29:28 2021
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    ACUS11 KWNS 290029
    SPC MCD 290028=20

    Mesoscale Discussion 1634
    NWS Storm Prediction Center Norman OK
    0728 PM CDT Sat Aug 28 2021

    Areas affected...central NE

    Concerning...Severe Thunderstorm Watch 470...

    Valid 290028Z - 290230Z

    The severe weather threat for Severe Thunderstorm Watch 470

    SUMMARY...Thunderstorms capable of severe wind/hail will continue
    over central NE this evening.

    DISCUSSION...Radar/satellite imagery early this evening shows a southwest-northeast band of embedded cells over central NE. Surface
    analysis indicates this thunderstorm cluster is located on the
    front. Conditions to the east/southeast in the inflow of the storms
    remains very warm and humid with upper 80s temperatures and
    dewpoints near 70 deg. The 00z North Platte raob showed 2700 J/kg
    MLCAPE and an 8 deg C/km surface to 500 mb lapse rate. Mid-level
    flow is forecast to strengthen over the next few hours as the
    shortwave trough over the northern High Plains continues east into
    the Dakotas this evening. The main hazards with the stronger storms
    will be large hail and severe gusts.

    ..Smith.. 08/29/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!pk6VRTX_CRVrUinzXp3AhK6syTtMhuh1dWPOFUApBLZDaJEd2oaKvANBX_rTZ0ClAmEs66jQ$=
    for graphic product...


    LAT...LON 41409930 41420007 41700022 42469838 42419784 42059779
    41809790 41409930=20

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