• MESO: Mesoscale Discussion 1137

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sunday, June 14, 2026 17:50:49
    ACUS11 KWNS 141750
    SWOMCD
    SPC MCD 141750=20
    SCZ000-NCZ000-GAZ000-TNZ000-141945-

    Mesoscale Discussion 1137
    NWS Storm Prediction Center Norman OK
    1250 PM CDT Sun Jun 14 2026

    Areas affected...portions of the Southeast into western North
    Carolina

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

    Valid 141750Z - 141945Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated strong to damaging wind gusts are possible
    through this afternoon/evening with widely scattered thunderstorms.

    DISCUSSION...Latest surface analysis depicts surface lee troughing
    downstream of the Appalachian Mountains, with a weak surface low
    analyzed in western North Carolina. Widely scattered convection has
    developed within this lee troughing through early afternoon, with
    the greatest coverage noted close to the weak low in the NC/SC/GA
    border vicinity. This activity is likely to persist eastward through
    the afternoon within a warm, humid air mass (sampled by the 12z FFC
    observed sounding). Despite surface dewpoints near 70 F, relatively
    warm mid-level temperatures and modestly more well-mixed boundary
    layer profiles inland are supporting only weak to moderate buoyancy,
    with 500-1500 J/kg MLCAPE indicated by objective analysis. Weak
    deep-layer flow and effective shear across the region will favor an outflow-dominant storm mode, with some potential for an occasionally
    more well-organized cluster or two. The main threat with this
    activity will be strong to isolated damaging wind gusts given high
    PWAT contents and steep low-level lapse rates. Given the expectation
    for storm longevity/organization and severe magnitude to remain
    limited, watch issuance is unlikely.

    ..Chalmers/Mosier.. 06/14/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!40ac0OfRgC4nJ6rN05fddGuC62QXzmWQkWJBwhxaTfWqNmH7yrIkjq0Kfs1aH0IyyzYe5V0Vx= 1a3quBFsbKh_hxGbPo$ for graphic product...

    ATTN...WFO...RAH...RNK...CHS...CAE...GSP...JAX...MRX...FFC...
    TAE...

    LAT...LON 36378159 36468127 36488100 36418070 36288047 35748035
    35178031 34108063 32698176 31768230 31408249 31158274
    31058321 31128417 31368458 31578468 32268468 32818468
    33708481 34408490 34888492 35138493 35378486 35508472
    35598435 35608378 35528298 35728232 36108184 36378159=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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