• MESO: Mesoscale Discussion 1957

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Aug 19 19:25:38 2024
    ACUS11 KWNS 191925
    SWOMCD
    SPC MCD 191924=20
    MDZ000-DEZ000-VAZ000-NCZ000-DCZ000-192130-

    Mesoscale Discussion 1957
    NWS Storm Prediction Center Norman OK
    0224 PM CDT Mon Aug 19 2024

    Areas affected...Virginia and portions of North Carolina

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

    Valid 191924Z - 192130Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Scattered thunderstorm activity will have potential to
    produce downbursts with strong to severe gusts.

    DISCUSSION...Thunderstorm activity has increased in coverage across
    Virginia and North Carolina this afternoon as lift from a mid-level
    trough overspreads a cold front across the region. Breaks in morning
    cloud cover have allowed for sufficient daytime heating and
    temperatures in the mid to upper 80s, with low-level lapse rates
    around 8 C/km. MLCAPE around 1000-1500 J/kg is analyzed in RAP
    objective analysis. While deep layer shear is weak, steep lapse
    rates and precipitable water values above 1 inch will support
    potential for a few strong storms with potential for downbursts
    capable of strong to severe gusts. Overall, this threat will likely
    remain too localized for watch issuance.

    ..Thornton/Hart.. 08/19/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7Pw8ONRqcMfyymLOujjGrs-Rcz1H7Pqs7HBZJFwb0D0mxCjXIjTIahRHBF_BbP3aByeVcnh7B= b7hctX0c7FkZjGK_1s$ for graphic product...

    ATTN...WFO...PHI...AKQ...MHX...LWX...RAH...RNK...

    LAT...LON 36117983 36997936 38257821 38977726 39367670 39577629
    39397579 38517527 37817552 36627595 35907616 35037641
    34857648 35387934 36117983=20


    =3D =3D =3D
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