• MESO: Mesoscale Discussion 1291

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 14 23:47:59 2025
    ACUS11 KWNS 142347
    SWOMCD
    SPC MCD 142347=20
    IAZ000-NEZ000-SDZ000-150145-

    Mesoscale Discussion 1291
    NWS Storm Prediction Center Norman OK
    0647 PM CDT Sat Jun 14 2025

    Areas affected...Northeast NE...southeast
    SD...northwest/north-central IA

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

    Valid 142347Z - 150145Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Strong to locally severe storms may persist through mid
    evening.

    DISCUSSION...Scattered storms have developed along a
    quasi-stationary surface front from northeast NE/southeast SD into
    northwest IA. Moderate buoyancy (MLCAPE in excess of 1500 J/kg) is
    in place along/south of the front, though deep-layer flow/shear is
    rather weak. Storms thus far have exhibited pulse to weak multicell characteristics, though one storm did produce severe hail earlier in
    northwest IA. Isolated hail will continue to be possible with the
    strongest storms, along with some potential for localized downburst
    winds. Generally limited storm organization should tend to hamper
    the duration and coverage of the severe threat this evening, but
    some isolated potential could persist through mid evening.

    ..Dean/Smith.. 06/14/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4R6UjtlFBe4Y2GvDS2NVLArrejtOB8Wj25KNQQKL1keVDZhQJeb_ToAYM9ylF5SWofbGqNER2= 1v0BJkp_7lMpp5kq7U$ for graphic product...

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

    LAT...LON 42809811 43469688 43309500 43019320 42789282 42569266
    42169280 41799313 41439346 41939480 42129556 42189657
    42179728 42189749 42129798 42809811=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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