• MESO: Mesoscale Discussion 1433

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Jun 25 16:17:32 2025
    ACUS11 KWNS 251617
    SWOMCD
    SPC MCD 251617=20
    NCZ000-VAZ000-SCZ000-GAZ000-251815-

    Mesoscale Discussion 1433
    NWS Storm Prediction Center Norman OK
    1117 AM CDT Wed Jun 25 2025

    Areas affected...Much of the Carolinas into northeast GA and far
    southern VA

    Concerning...Severe potential...Watch likely=20

    Valid 251617Z - 251815Z

    Probability of Watch Issuance...80 percent

    SUMMARY...While timing is uncertain, potential for damaging
    downburst/outflow winds and isolated hail will increase through the
    afternoon.

    DISCUSSION...A volatile thermodynamic environment is in place across
    the Carolinas early this afternoon. Morning soundings across the
    region depict very steep midlevel lapse rates atop a richly moist
    boundary layer, and strong to extreme buoyancy (with MLCAPE of
    3000-4500 J/kg) is already in place across the region.=20

    With rather nebulous large-scale ascent, storm coverage is somewhat
    uncertain in the short-term, though should generally increase
    through the afternoon. Some initiation is underway near a weak
    surface confluence zone across northeast NC. While deep-layer shear
    is rather weak, the very favorable thermodynamic environment will
    support damaging/potentially severe downbursts. Relatively cool
    temperatures aloft could also support at least a brief hail threat
    with the strongest updrafts. With time, some outflow consolidation
    could occur, resulting in potential for more concentrated swaths of
    wind damage.=20

    One or more watches will likely be issued across the region this
    afternoon, though timing is uncertain and related to trends
    regarding storm development and coverage.

    ..Dean/Hart.. 06/25/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-NlkNqPk2owcD_2lt0FSjWSgJg9yY9NNc1KZ-1dL1duTn0A8IWTinyvmiunOtrIrETogx1GU-= jIVJhg5swDziHTEG2U$ for graphic product...

    ATTN...WFO...AKQ...MHX...RAH...ILM...RNK...CHS...CAE...GSP...
    FFC...

    LAT...LON 36807839 36197755 35387689 34547717 33807864 33468021
    33068245 33628292 34358324 35018188 35358144 35778090
    36118042 36477935 36807839=20

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


    =3D =3D =3D
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