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  • MESO: Mesoscale Discussion 1693

    From COD Weather Processor @1:2320/107 to All on Tue Jul 21 19:09:14 2026
    ACUS11 KWNS 211909
    SWOMCD
    SPC MCD 211908
    WVZ000-OHZ000-KYZ000-INZ000-212045-

    Mesoscale Discussion 1693
    NWS Storm Prediction Center Norman OK
    0208 PM CDT Tue Jul 21 2026

    Areas affected...portions of the middle and upper Ohio Valley

    Concerning...Severe Thunderstorm Watch 506...508...

    Valid 211908Z - 212045Z

    The severe weather threat for Severe Thunderstorm Watch 506, 508
    continues.

    SUMMARY...Threat for all severe hazards continues across portions of
    the middle and upper Ohio Valley. A gradual transition towards
    damaging/severe wind gusts as the predominant hazard is then
    expected through the afternoon.

    DISCUSSION...Scattered convection with semi-discrete supercells has
    developed along/ahead of an approaching cold front across portions
    of the middle Ohio Valley with somewhat more isolated convection
    also ongoing across western/central Ohio. The environment ahead of
    these storms remains favorable for all severe hazards, especially
    from eastern into southwestern Ohio where latest mesoanalysis
    suggests effective SRH is greater and may support stronger
    supercells in the near-term. Linear forcing along the front and
    subsequent interactions between neighboring storms should then allow
    for a transition into one or more clusters over the next 1-2 hours,
    with a shift towards damaging/severe wind gusts as the main risk.

    ..Chalmers.. 07/21/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!9zy6Um-rqRjnIRKFas6wg-MnRheutuM4qhtQx2o3A1_N2LLFVq-4FYCHByKzmBVFYTvowrmoKNaqIYJJO8Q2TvufPnw$ for graphic product...

    ATTN...WFO...PBZ...RLX...CLE...JKL...ILN...LMK...IND...PAH...

    LAT...LON 38298742 38468724 38598672 38718603 38988522 39338439
    39658381 40198301 40308271 40328220 40238163 40178125
    40058088 39908074 39648075 39328100 38988139 38608204
    38238268 37708379 37448446 37438597 37568674 37758714
    38018735 38298742

    MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)