• MESO: Mesoscale Discussion 0437

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Apr 27 20:32:58 2021
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    ACUS11 KWNS 272032
    SPC MCD 272032=20

    Mesoscale Discussion 0437
    NWS Storm Prediction Center Norman OK
    0332 PM CDT Tue Apr 27 2021

    Areas affected...Portions of northeast Colorado

    Concerning...Severe Thunderstorm Watch 112...

    Valid 272032Z - 272230Z

    The severe weather threat for Severe Thunderstorm Watch 112

    SUMMARY...The threat for severe hail and perhaps a damaging gust or
    two continues across Severe Thunderstorm Watch #0112, and is
    expected to persist through the remainder of the afternoon.

    DISCUSSION...Multiple multicellular-clusters are in progress across
    the western half of Severe Thunderstorm Watch #0112. While MRMS
    mosaic radar data has shown storms potentially producing 1+ inch
    diameter hail over the past couple of hours, individual
    cells/clusters have demonstrated pulse-like behavior, with
    relatively short life spans. Nonetheless, storms are developing in
    an ambient environment characterized by 8+ C/km mid-level lapse
    rates and over 50 kts of effective bulk shear (per latest
    Mesoanalyis). The severe hail threat is expected to persist with the
    more intense longer-lived storms, and a damaging gust or two cannot
    be ruled out. Convective coverage may also increase somewhat as
    convective outflows locally enhance low-level convergence in spots.

    ..Squitieri/Hart.. 04/27/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!uXXtE6kkzCWTGrWEboOz0SRAKN0bdfI9vWFGc6eurcxCIXQgxJqO19Gy8Gd06cjE_CVu5wWE$=
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    LAT...LON 38990402 39350448 39930457 40580444 40870426 41000366
    41020269 40930232 40510206 40010203 39630209 39350218
    39080245 38930306 38960349 38990402=20

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