• MESO: Mesoscale Discussion 1247

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, August 06, 2018 20:17:00
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    ACUS11 KWNS 062016
    SWOMCD
    SPC MCD 062016
    KYZ000-INZ000-ILZ000-TNZ000-MOZ000-ARZ000-MSZ000-062245-

    Mesoscale Discussion 1247
    NWS Storm Prediction Center Norman OK
    0316 PM CDT Mon Aug 06 2018

    Areas affected...Northeast Arkansas...Western Tennessee...Southeast Missouri...Western Kentucky...Southern Illinois...Far Southwest
    Indiana

    Concerning...Severe potential...Watch unlikely

    Valid 062016Z - 062245Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A marginal wind damage threat is likely to continue across
    parts of the mid Mississippi Valley through late afternoon.

    DISCUSSION...The latest surface analysis shows a very moist airmass
    in place across the mid Mississippi Valley where surface dewpoints
    are generally in the mid 70s F. This is contributing to strong
    instability with the RAP analyzing MLCAPE values in the 2500 to 3500
    J/kg range from northeast Arkansas into far southern Illinois. This
    combined with 0-3 km lapse rates of 8 to 9 C/km will support a
    marginal wind damage threat as cell coverage continues to increase
    this afternoon. Brief wet downbursts may be associated with the
    stronger pulse storms and multicells.

    ..Broyles/Thompson.. 08/06/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...LMK...IND...PAH...ILX...MEG...LSX...LZK...SGF...

    LAT...LON 34939174 34659101 34828993 36358860 37408707 38448712
    38958751 39008820 38798903 38348974 37629043 36229178
    35339207 34939174



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