• MESO: Mesoscale Discussion 2064

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Sep 12 16:18:24 2025
    ACUS11 KWNS 121618
    SWOMCD
    SPC MCD 121617=20
    MNZ000-SDZ000-NDZ000-121715-

    Mesoscale Discussion 2064
    NWS Storm Prediction Center Norman OK
    1117 AM CDT Fri Sep 12 2025

    Areas affected...portions of far northeastern South Dakota and
    central/northern Minnesota

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

    Valid 121617Z - 121715Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Storms across central/northern Minnesota will pose a risk
    for small to severe hail.

    DISCUSSION...Thunderstorms ongoing across central Minnesota have
    produced occasional reports of hail up to 1 inch. Though MLCAPE is
    meager, NAM/RAP forecast soundings suggest there is ample MUCAPE
    aloft amid steep mid-level lapse rates and deep layer shear around
    30-40 kts. This will continue to support a few instances of small to
    severe hail. Given the uncertainty on the duration and spatial
    coverage of this threat, a watch is unlikely.

    ..Thornton/Guyer.. 09/12/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-KhTmtPeFWWv_WZEGsr8iaJxb3IF6Ik6aUDx8kDOG9QDi-lLLhJNq3o0SfhuxsMzrzamygdnA= lpjG11LUmdN1wDHUl4$ for graphic product...

    ATTN...WFO...DLH...MPX...FGF...ABR...

    LAT...LON 46259647 47889535 48249448 48279355 48219296 48019250
    47179222 46309236 46039247 45069606 45039720 45499759
    45849735 46259647=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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