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  • MESO: Mesoscale Discussion 1844

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Jul 30 06:29:58 2025
    ACUS11 KWNS 300628
    SWOMCD
    SPC MCD 300628=20
    ILZ000-IAZ000-MOZ000-NEZ000-300830-

    Mesoscale Discussion 1844
    NWS Storm Prediction Center Norman OK
    0128 AM CDT Wed Jul 30 2025

    Areas affected...southern/eastern IA and adjacent parts of MO/IL

    Concerning...Severe Thunderstorm Watch 559...560...561...

    Valid 300628Z - 300830Z

    The severe weather threat for Severe Thunderstorm Watch 559, 560,
    561 continues.

    SUMMARY...Strong to sporadic severe gusts will remain possible
    through sunrise across much of southern to eastern Iowa and adjacent
    portions of Missouri and Illinois. The more concentrated threat is
    anticipated over south-central Iowa where WW 561 was recently
    coordinated.

    DISCUSSION...Two clusters of strong to locally severe storms are
    ongoing, a lead one over east-central IA and a broader arc across
    west-central to southwest IA. A measured gust of 58 mph was reported
    last hour at KMIW and sporadic gusts of 50-70 mph will be possible
    with the lead cluster as it moves east at around 30 mph in eastern
    IA. Greater organizational character with a more pronounced cold
    pool accompanies the north-northeast to southwest oriented QLCS in
    western IA. While the northern extent will progress atop the lead
    cluster's outflow, ample buoyancy to its south with mid to upper 70s
    surface dew points should foster mainly strong with sporadic severe
    gusts as it moves east-southeast at around 30 mph through daybreak.

    ..Grams.. 07/30/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9jzsaMODu5--z9BzVq_ZL9uOs8WtPd9CWL62XMgLdQn9XFidJ2PEkJL-9l4IpU7K39K0_G4sF= Pj9bmp3Qu6Yr1fJuZ8$ for graphic product...

    ATTN...WFO...DVN...DMX...EAX...OAX...

    LAT...LON 42329467 42139385 41779315 41859276 42219246 42569189
    42579087 42339020 41589016 40629086 40499147 40349219
    40309377 40319470 40339543 40459572 40679567 41259503
    41599472 42329467=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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