• MESO: Mesoscale Discussion 0797

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tuesday, May 19, 2026 23:39:34
    ACUS11 KWNS 192339
    SWOMCD
    SPC MCD 192339=20
    OHZ000-KYZ000-INZ000-200045-

    Mesoscale Discussion 0797
    NWS Storm Prediction Center Norman OK
    0639 PM CDT Tue May 19 2026

    Areas affected...portions of eastern and southern Ohio...far
    southeastern Indiana

    Concerning...Severe Thunderstorm Watch 230...231...

    Valid 192339Z - 200045Z

    The severe weather threat for Severe Thunderstorm Watch 230, 231
    continues.

    SUMMARY...A few damaging gusts are possible over the next couple of
    hours before boundary layer stabilization occurs. Local WW
    extensions may be needed if storms can maintain their intensity.

    DISCUSSION...A persistent elongated MCS continues to track eastward
    across the eastern OH Valley with a history of widely scattered
    damaging gusts. Surface temperatures range from the low to mid 80s F
    ahead of the line, accompanied by 1500-2000 J/kg MLCAPE, suggesting
    that the boundary layer is still unstable and mixed enough to
    support a few additional damaging gusts. However, this threat should
    gradually subside with the loss of daytime heating. Still, WW
    extensions may be needed if storms persist for more than a couple of
    hours.

    ..Squitieri.. 05/19/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8j9Mh1b8jdyvRLTwigmIw19T1ypRp_Y75BA0KNlKURpeQkguvsYb9CjbQV62fvbmNFDoVRTCl= y-O-b8pSSw42-Zr2_w$ for graphic product...

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

    LAT...LON 38738717 39338523 40098396 41368243 41628156 41528086
    41268073 40768113 39918232 39128295 38808353 38648420
    38608539 38648685 38738717=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH


    =3D =3D =3D
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