• MESO: Mesoscale Discussion 0774

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon May 18 19:17:21 2026
    ACUS11 KWNS 181917
    SWOMCD
    SPC MCD 181916=20
    MIZ000-OHZ000-INZ000-182045-

    Mesoscale Discussion 0774
    NWS Storm Prediction Center Norman OK
    0216 PM CDT Mon May 18 2026

    Areas affected...Southern and Central Michigan

    Concerning...Severe Thunderstorm Watch 221...

    Valid 181916Z - 182045Z

    The severe weather threat for Severe Thunderstorm Watch 221
    continues.

    SUMMARY...The severe thunderstorm threat for WW 221 continues.
    Severe thunderstorms capable of damaging straight-line winds are
    ongoing and expected to persist.

    DISCUSSION...Severe thunderstorms capable of primarily damaging
    straight-line winds are ongoing across WW 221. Several measured
    gusts of 60-75 MPH have been observed in the wake of the apex of the
    bowing line segment. A localized corridor along the leading edge and
    apex of the bowing segment exists where the wind damage threat is
    maximized, with gusts to 80 MPH possible. These storms are expected
    to persist and maintain their intensity with eastward extend as they
    cross central and southern Michigan.

    ..Halbert.. 05/18/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!875XR7KzT9zIH_Z0tewTwDuo-ysSRzowk8srB2wWf0GgAAQEeEi0Kh9W4BcJCFx0FH_FVGEGr= GmCEs2tQSYaSSrbY34$ for graphic product...

    ATTN...WFO...CLE...DTX...IWX...GRR...

    LAT...LON 41698533 42398515 42698526 43028556 43368565 43728465
    43698355 43408293 42788271 42298279 41838301 41728355
    41698533=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 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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    * Origin: Capitol City Online (1:2320/107)