• MESO: Mesoscale Discussion 1166

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jun 4 22:26:38 2024
    ACUS11 KWNS 042226
    SWOMCD
    SPC MCD 042226=20
    MNZ000-IAZ000-MOZ000-NEZ000-050000-

    Mesoscale Discussion 1166
    NWS Storm Prediction Center Norman OK
    0526 PM CDT Tue Jun 04 2024

    Areas affected...Portions of central IA far northern MO and southern
    MN

    Concerning...Severe potential...Watch possible=20

    Valid 042226Z - 050000Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Several clusters of thunderstorms appear likely to
    increase in coverage and intensity this evening. While there remains
    some uncertainty on the degree of storm organization, at least some
    potential for damaging gusts and hail may warrant a WW.

    DISCUSSION...As of 2220 UTC, regional radar analysis showed several
    clusters of thunderstorms ongoing ahead of a slow moving cold front
    associated with a broad mid-level trough stretching from southern MN
    to northern MO. Mid to upper 60s F surface dewpoints are in place
    over much of the Midwest, and diurnal heating has allowed
    temperatures to warm into the low 80s F. Despite modest low and
    mid-level lapse rates, moderate buoyancy (1000-1500 J/kg of MLCAPE)
    is sufficient to support strong updrafts. Mid-level shear magnitudes
    are not overly large with the stronger flow aloft displaced to the
    north and east. Still area VADs show modestly curving hodographs and
    effective shear of 25-30 kt over much of IA. Given the degree of
    instability and forcing from the front/ developing cold pools, storm organization into multicell clusters or short bowing segments is
    possible. A few transient supercells structures are also possible
    with the more discrete convection. With several measured gusts
    already and the potential for more storms to mature this evening,
    damaging gust and hail potential appears to increasing. Conditions
    are being monitored for a possible weather watch.

    ..Lyons/Hart.. 06/04/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4ow0vd0rZfMmzg6FIEFSOdPOqfjSbk687V8naLQZE_4Hn-ltZ2725XybGZF-AFtfSjcgIHnEl= 5IxIl8itpPP1hqaJ3U$ for graphic product...

    ATTN...WFO...DVN...ARX...MPX...DMX...EAX...OAX...

    LAT...LON 40299375 40029507 40019560 40109582 40329582 40689578
    40909576 41589549 42159512 43059446 43449438 43729436
    43989420 44249366 44199321 44039238 43489212 42549213
    41749247 40859293 40469333 40299375=20


    =3D =3D =3D
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