• MESO: Mesoscale Discussion 1486

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Aug 11 20:25:06 2021
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    ACUS11 KWNS 112024
    SPC MCD 112024=20

    Mesoscale Discussion 1486
    NWS Storm Prediction Center Norman OK
    0324 PM CDT Wed Aug 11 2021

    Areas affected...Southern and Eastern Ohio

    Concerning...Severe potential...Watch possible=20

    Valid 112024Z - 112200Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Portions of eastern and southern Ohio are being monitored
    for a potential watch downstream of watch 426.

    DISCUSSION...A line of storms continues east across northern Ohio.
    The airmass remains unstable downstream of this activity within
    watch 426 but then becomes more uncertain to its south and east. A
    large area of outflow from storms in West Virginia this morning has
    surged northward and stabilized portions of southern and eastern
    Ohio as can be observed by the lack of cu on visible satellite. In
    addition, storms developed on this boundary in far eastern Ohio
    which has acted to reinforce this outflow boundary as it continues
    north. This may limit convective intensity across portions of
    southeast and eastern Ohio. However, west of this outflow boundary,
    a very unstable airmass is in place with MLCAPE around 3000 J/kg.
    Recently storms have started to form ahead of the line within the
    cumulus field which could also could pose some severe risk given the instability.

    ..Bentley/Thompson.. 08/11/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!oySBRL1xvSNfpZB_d8mCqbwBElfVgHvU1E2evYExPXZaP32kB_iZM45-TGCK6gKqPB3d7kDR$=
    for graphic product...


    LAT...LON 39058196 38918232 39148379 39598453 39778375 40158262
    41208167 41838084 41938054 40008074 39188180 39058196=20

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