• MESO: Mesoscale Discussion 1861

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Aug 7 23:56:24 2024
    ACUS11 KWNS 072356
    SWOMCD
    SPC MCD 072356=20
    NCZ000-SCZ000-080200-

    Mesoscale Discussion 1861
    NWS Storm Prediction Center Norman OK
    0656 PM CDT Wed Aug 07 2024

    Areas affected...coastal Carolinas

    Concerning...Tornado Watch 610...

    Valid 072356Z - 080200Z

    The severe weather threat for Tornado Watch 610 continues.

    SUMMARY...Tornado threat will continue within WW610.

    DISCUSSION...Recent radar across the coastal Carolinas has shown
    weak circulations off shore and within a band extending inland
    across southern North Carolina from Wilmington to the South Carolina
    border. Overall, the inland environment is characterized by weak
    thermodynamic profiles, given MLCAPE around 500-1000 J/kg and poor
    lapse rates (around 5 C/km). The most favorable low-level shear
    remains further inland, where around 150 m2/s2 0-1 km SRH is
    observed in objective analysis. Given the poor overlap of low-level
    shear with instability and generally weak lapse rates, a
    continuation of occasional weak circulations and potential for a
    tornado could not be ruled out in the short term.=20

    Further north across the northern portion of WW610 near the Outer
    Banks, warming has occurred with temperatures in the low to mid 80s
    yielding MLCAPE around 1500-2000 J/kg. RAP forecast indicate that
    shear may increase across this region over the next several hours.=20
    Should a band of cells move into this region, there may be a more
    favorable corridor for tornadoes later in the watch period.

    ..Thornton.. 08/07/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6iuoid5LE5f0nxHy3UNGl6BQjGs4HcwQY0A2R_KqbTSfkmiQpNtVYX2ukvu4_g_7mG_N70K46= ZOfyUjsAuzNDbwVxVk$ for graphic product...

    ATTN...WFO...MHX...RAH...ILM...

    LAT...LON 34257932 34537893 34727831 34827771 34757728 34517690
    34287696 33807745 33557776 33447838 33407881 33467916
    33617979 33797979 34257932=20


    =3D =3D =3D
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