• MESO: Mesoscale Discussion 1531

    From COD Weather Processor @1:2320/107 to All on Tue Jul 7 14:29:52 2026
    ACUS11 KWNS 071429
    SWOMCD
    SPC MCD 071429
    MNZ000-SDZ000-NDZ000-071630-

    Mesoscale Discussion 1531
    NWS Storm Prediction Center Norman OK
    0929 AM CDT Tue Jul 07 2026

    Areas affected...Northeast South Dakota...far southeast North Dakota...west-central Minnesota

    Concerning...Severe potential...Watch possible

    Valid 071429Z - 071630Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Isolated large hail is possible as convection moves
    eastward over the next 1-3 hours. A watch is not currently expected,
    but trends will be monitored into the afternoon.

    DISCUSSION...A small cluster of storms is moving eastward on the
    cool side of a stationary boundary. Weak warm advection is likely
    supporting this activity. Given the steep mid-level lapse rates and
    modest elevated buoyancy, isolated large hail is possible with the
    strongest storm cores. 850 mb winds are expected to weaken slightly
    over the next couple of hours. At least in the short term, it is not
    likely for enough of a cold pool to develop to maintain organization
    or for the boundary to lift northward and storms to become surface
    based. Destabilization is occurring farther east and the boundary
    orientation could allow this cluster to interact with it by mid
    afternoon. Observational trends will continue to be monitored.

    ..Wendt/Hart.. 07/07/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!-_hnfAYUrNH8RpuZjVHefG5lKR_qbRn1Bzi_QCCyMO_tysSNzLn67HiUpbGFGGNNFJ1xoaKaZVAtz6AWzHmp5y1R0zU$ for graphic product...

    ATTN...WFO...MPX...FGF...ABR...BIS...

    LAT...LON 44939919 45130001 45760049 46210002 46379906 46269728
    46109606 45739598 45239613 44959659 44879712 44779809
    44939919

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


    = = =
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.
    --- scorpsmtpd
    * Origin: Capitol City Online (1:2320/107)