• MESO: Mesoscale Discussion 1805

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Aug 1 18:58:54 2023
    ACUS11 KWNS 011858
    SWOMCD
    SPC MCD 011858=20
    NCZ000-SCZ000-GAZ000-012030-

    Mesoscale Discussion 1805
    NWS Storm Prediction Center Norman OK
    0158 PM CDT Tue Aug 01 2023

    Areas affected...South Carolina into southern North Carolina

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

    Valid 011858Z - 012030Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A couple of damaging gusts are possible this afternoon.
    Severe potential is isolated and a WW issuance is not anticipated.

    DISCUSSION...Surface temperatures are rising into the upper 80s F
    amid near 70F dewpoints, with convective temperatures being reached,
    supporting thunderstorm initiation (evident via NLDN data showing
    lightning flashes along the NC/SC border). Though mid-level lapse
    rates are mediocre, rich low-level moisture supports 1500 J/kg of
    tall/thin MLCAPE. When also considering elongated hodographs (and
    resultant 30+ kts of effective bulk shear), multicellular storms may
    develop, supporting the risk of isolated damaging gusts. Given the
    sparse severe threat, a WW issuance is not expected.

    ..Squitieri/Thompson.. 08/01/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_W6S06dLj-JmBBFPRFCz6ziCXVApxOCi8svgawKjyVD74q2pCvI8kjtiJhv3TDRgsEU3jNITr= 7uzh7BPAVyNjDRLWug$ for graphic product...

    ATTN...WFO...RAH...ILM...CHS...CAE...FFC...

    LAT...LON 33178234 33698202 34308100 34648006 34767886 34667801
    34437783 34077798 33297891 32977954 32758007 32618087
    32608159 33178234=20


    =3D =3D =3D
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