• MESO: Mesoscale Discussion 1997

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Aug 26 17:36:03 2024
    ACUS11 KWNS 261735
    SWOMCD
    SPC MCD 261735=20
    MNZ000-SDZ000-NDZ000-261900-

    Mesoscale Discussion 1997
    NWS Storm Prediction Center Norman OK
    1235 PM CDT Mon Aug 26 2024

    Areas affected...Portions of central Minnesota

    Concerning...Severe potential...Watch possible=20

    Valid 261735Z - 261900Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Initial storm development in central Minnesota may be
    elevated to marginally surface based and struggle against residual
    capping. Should storms mature, large hail and wind damage are
    possible. A watch is possible, but this will depend on trends in
    convective evolution.

    DISCUSSION...Convection has developed in west-central Minnesota,
    likely aided by weak warm advection at lower levels. This mornings
    soundings from Aberdeen/Minneapolis showed a warm nose within the
    850-700 mb layer. It appears that convection is struggling to intensify/organize with this capping in place. Furthermore,
    large-scale ascent is currently weak. Should this activity mature,
    large hail and isolated wind damage would be possible.

    Short-term guidance is not consistent in how this activity will
    evolve, with some suggesting it will weaken in the next few hours
    and others showing cold pool development that spurs new convection
    farther south where greater buoyancy resides. From a large-scale
    perspective, greater ascent/mid-level cooling is not expected until
    later in the afternoon, though an MCV moving through eastern South
    Dakota could potentially supplement ascent locally earlier. The most
    probable scenario is that more robust convection will develop by
    mid/late afternoon near an area of surface convergence in central
    Minnesota. The need for a watch in the short term is uncertain;
    however, trends will continue to be closely monitored this
    afternoon.

    ..Wendt/Guyer.. 08/26/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-w91GyRJDaQwVesvjN4CDuAXktr__qS9nDXzha9IrQqEP4cQLiVE8upLa0BphcQeROTNR5qG5= lQwohLDBic4dVCsZ14$ for graphic product...

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

    LAT...LON 45449550 45369626 45559646 46069663 46529636 47109448
    46939347 46459331 45849401 45449550=20


    =3D =3D =3D
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