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  • MESO: Mesoscale Discussion 1422

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jun 23 23:10:19 2025
    ACUS11 KWNS 232310
    SWOMCD
    SPC MCD 232309=20
    WIZ000-240045-

    Mesoscale Discussion 1422
    NWS Storm Prediction Center Norman OK
    0609 PM CDT Mon Jun 23 2025

    Areas affected...portions of central and eastern Wisconsin

    Concerning...Severe Thunderstorm Watch 455...

    Valid 232309Z - 240045Z

    The severe weather threat for Severe Thunderstorm Watch 455
    continues.

    SUMMARY...A well-organized bowing cluster of severe storms will
    continue to pose a risk for damaging wind gusts this evening. An
    isolated gust to 75 mph is also possible.

    DISCUSSION...Across central WI, a cluster of thunderstorms has shown
    continued intensification/organization early this evening within
    WW455. North of KMSN, single site radar imagery shows an
    accelerating bowing cluster with recent reports of damage. In
    addition to increasingly strong radar/satellite features, area
    observations show outflow temperatures 20-25 F cooler behind line,
    indicative of a well-formed and deep cold pool. These convective
    trends within a very buoyant/moderately sheared environment strongly
    suggest a continued threat for wind damage downstream across central
    and eastern WI over the next couple of hours. Additionally, an
    isolated significant gust to 75 mph is possible given the increased
    forward speed and strong downdraft potential at the apex of the
    bowing cluster. Given the continued potential for damaging gusts,
    WW455 will be expanded locally ahead of the bow.

    ..Lyons.. 06/23/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-qC0BcUZWs8buUVyLYYbx3Fgt_NI5CxyskkMNQb78UqDiWs5SgfwKDXnzIWJb3o4M2kOYQAwj= QA-0kwV2-gJAVh8ZdE$ for graphic product...

    ATTN...WFO...GRB...MKX...ARX...

    LAT...LON 43269070 43339054 43599025 44188956 44398912 44398792
    44298746 43968769 43328778 42958781 42688774 42768992
    42919045 43269070=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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