• MESO: Mesoscale Discussion 0740

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 26 00:41:04 2021
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    ACUS11 KWNS 260040
    SWOMCD
    SPC MCD 260040=20
    IAZ000-260215-

    Mesoscale Discussion 0740
    NWS Storm Prediction Center Norman OK
    0740 PM CDT Tue May 25 2021

    Areas affected...Central Iowa

    Concerning...Severe potential...Watch unlikely=20

    Valid 260040Z - 260215Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated, marginally severe hail and wind gusts may occur
    with weakly organized supercell storms in central Iowa. No WW is
    expected as this activity should diminish in an hour or two.

    DISCUSSION...Marginal supercell storms have developed along the cold
    front moving into central Iowa. Around 1500 J/kg MLCAPE and 25 kts
    of effective shear has supported this weak organization. A storm
    near the Guthrie/Dallas County line has shown the most organization
    so far and would be the greatest short-term threat for marginally
    severe hail and a strong wind gust. With temperatures starting to
    decrease in the region, the longevity of this activity is not likely
    to be more than another hour or two. No WW is expected.

    ..Wendt.. 05/26/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!v2QeUV5eVCYrt3SEs3m8poGfDKFw8WG2KJSzsPoG8fYcnC2KVbC43wG5Bzj0otJJIo7Lqjtg$=
    for graphic product...

    ATTN...WFO...DMX...OAX...

    LAT...LON 41319537 41999466 42579396 42549343 41979337 41719350
    41489362 41299400 40959468 40989513 41099535 41319537=20



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