• MESO: Mesoscale Discussion 1042

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jun 21 02:57:11 2021
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    ACUS11 KWNS 210257
    SPC MCD 210256=20

    Mesoscale Discussion 1042
    NWS Storm Prediction Center Norman OK
    0956 PM CDT Sun Jun 20 2021

    Areas affected...North-central Missouri and far eastern Kansas.

    Concerning...Severe Thunderstorm Watch 294...

    Valid 210256Z - 210400Z

    The severe weather threat for Severe Thunderstorm Watch 294

    SUMMARY...A few severe storms with a threat for strong wind gusts
    will remain possible across the far southern fringe of WW294 through
    the 0400z expiration time.

    DISCUSSION...As of 0240z, RADAR data showed a loosely organized band
    of storms stretching from near Kansas City into north-central
    Missouri. Storm coverage has increased likely as a result of
    strengthening low-level warm advection with the nocturnal low-level
    jet. Flow associated with the jet will remain largely parallel to
    the ongoing band of storms suggesting slower forward propagating
    speeds and additional development focused along the southern flank.
    Mostly non-severe gusts have been observed over the last 40 minutes,
    but storms will likely remain capable of isolated damaging gusts as
    they exit the southern portions of WW294 over the next hour.
    Additional cellular development to the west across far eastern
    Kansas may grow upscale and continue to the east posing a risk for
    isolated gusts and or small hail after 04z. While convective
    coverage is forecast to increase, the threat for severe weather
    should gradually abate through 0400z as the boundary layer separates
    and inhibition increases.

    ..Lyons.. 06/21/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qZO1Qz7QWLXYh5LSwFaCFCszRm5LL62-epBGPuM48DWDnrzJlsYJWn5QRmC5Q8_fLDOEp0j6$=
    for graphic product...


    LAT...LON 39239375 39359313 39279281 38989262 38769268 38719281
    38639323 38399371 38179432 38249461 38509469 38889464

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