• MESO: Mesoscale Discussion 0855

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon May 25 20:19:43 2026
    ACUS11 KWNS 252019
    SWOMCD
    SPC MCD 252019=20
    MNZ000-252215-

    Mesoscale Discussion 0855
    NWS Storm Prediction Center Norman OK
    0319 PM CDT Mon May 25 2026

    Areas affected...Minnesota Arrowhead

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

    Valid 252019Z - 252215Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A storm or two is possible this afternoon/early evening,
    particularly along the Canadian border. Marginally severe hail and
    severe winds are possible with the most organized storms. A watch is
    not likely.

    DISCUSSION...Subtle influence from a shortwave trough moving through
    Ontario has promoted thunderstorm development north of the Canadian
    border this afternoon. Deepening cumulus are noted on visible
    satellite within the Minnesota Arrowhead. Additional cumulus have
    also developed farther northwest in the drier air. Given the
    mid-level height rises that are occurring and expected to continue,
    storm coverage, and intensity for that matter, in Minnesota are far
    from clear. It does appear possible that a storm or two could
    develop by late afternoon/early evening within a narrow corridor
    from the axis of greater surface moisture and the lake breeze
    boundary. This is more likely to occur near the border given the
    greater influence of the shortwave trough. Temperatures are cold
    enough aloft to support a marginal hail threat despite modest moisture/buoyancy. Severe winds could also occur given how
    well-mixed the boundary layer is.

    ..Wendt/Gleason.. 05/25/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4Nt3Sg5t0Xo9PE1szJMYmiwLUlW7V-HMepFpndfeYfJjzzg_yGjTMHkwNB8uBpVtwMQWLvsxd= J52-jBrIbNcUq1vAkY$ for graphic product...

    ATTN...WFO...DLH...FGF...

    LAT...LON 47319365 47479400 47929445 48189431 48369393 48609325
    48499211 48499204 48309089 48169024 47819038 47049157
    46929222 47319365=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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