• MESO: Mesoscale Discussion 1550

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jul 3 19:19:01 2025
    ACUS11 KWNS 031918
    SWOMCD
    SPC MCD 031918=20
    WIZ000-ILZ000-IAZ000-MNZ000-NDZ000-032145-

    Mesoscale Discussion 1550
    NWS Storm Prediction Center Norman OK
    0218 PM CDT Thu Jul 03 2025

    Areas affected...Central Minnesota...far northeast Iowa...and
    central/western Wisconsin

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

    Valid 031918Z - 032145Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated strong storms possible posing a threat for severe
    wind/hail possible this afternoon/evening

    DISCUSSION...Water vapor imagery shows a remnant MCV traversing
    southern portions of North Dakota. Ahead of this feature, weak
    convection has persisted throughout the morning into the early
    afternoon. SPC mesoanalysis shows a destabilizing environment
    downstream of this ongoing activity, with MLCAPE values now
    exceeding 15000-2000 J/kg. Visible satellite supports this notion,
    particularly along a northwest to southeast oriented warm/moist axis
    (weak warm front) where dew point temperatures are nearing 65-70 F
    south of the boundary. The aforementioned MCV is aiding in
    enhancement of deep-layer shear, ranging from 30-40 kt, across the
    region.

    Continued insolation across the region should support further
    destabilization, which may lead to a re-intensification of the
    ongoing activity entering west-central Minnesota where MLCIN is
    relatively lower. Additional storm formation is also possible
    downstream (as supported by the latest HRRR runs) by late
    afternoon/evening. Isolated instances of severe wind/hail are
    possible should this occur. Watch issuance is not anticipated at
    this time, though convective trends will continue to be monitored.

    ..Karstens/Mosier.. 07/03/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4R_dNvrV8SnDnx5ibvBaPDAUr4e7HisJ_yjQh2IT2op4s_fTSHBDr1Yn0Jh6M8mjfzR483x6W= vBRip2WaV0gLwXmy_M$ for graphic product...

    ATTN...WFO...GRB...MKX...DVN...DLH...ARX...MPX...DMX...FGF...
    ABR...

    LAT...LON 46519273 45959167 45089023 44018887 42978895 42398954
    42199033 41989141 42179225 42789314 43709370 44689470
    44919517 45119574 45419624 46019657 46729658 47309626
    47369549 47129445 46519273=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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