• MESO: Mesoscale Discussion 1007

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sat Jun 6 21:43:01 2026
    ACUS11 KWNS 062142
    SWOMCD
    SPC MCD 062142=20
    OHZ000-062245-

    Mesoscale Discussion 1007
    NWS Storm Prediction Center Norman OK
    0442 PM CDT Sat Jun 06 2026

    Areas affected...portions of northern and central Ohio

    Concerning...Severe potential...Watch likely=20

    Valid 062142Z - 062245Z

    Probability of Watch Issuance...80 percent

    SUMMARY...Strong to severe storms are expected to increase in
    coverage this afternoon/evening. Hail and damaging gusts are
    becoming more likely.

    DISCUSSION...As of 2135 UTC, satellite and radar imagery over the
    Great Lakes showed new thunderstorm development ongoing along an
    east-west oriented surface front from western Lake Erie into
    southern lower MI and northern IN. South of the boundary, upper 60s
    to low 70s F surface dewpoints and strong heating are supporting
    moderate instability with MLCAPE of 1500-2500 J/kg. With 40-50 kt of
    deep-layer flow aloft overspreading the unstable air mass, organized
    storms are expected. Already, supercells structures have been
    observed and are likely to be the primary convective mode. Hail and
    damaging winds are possible. Though surface flow is modest, some
    veering and the potential for supercells suggests a tornado or two
    is also possible.

    Uncertainty remains on the east/southeastern extent of the severe
    risk given ongoing convection over central/southern OH and the
    impact of an earlier MCS. A remnant baroclinic zone may be the
    primary focus for the strongest storms into central/northeastern OH
    this evening. Given the expected increase in severe risk, a WW is
    likely needed.

    ..Lyons/Gleason.. 06/06/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_Vi4DAuok-r1T9U_cgGhH7OsxIcBiMg0_GV_8zyp0lv9D3DCCRlZoyuGxuyT765AommZwt_08= K8pu7gN6teKAve0--o$ for graphic product...

    ATTN...WFO...PBZ...RLX...CLE...ILN...IWX...

    LAT...LON 41268109 40648078 39778090 39618112 39898217 40858397
    41158448 41508438 41678386 41728325 41578244 41568159
    41408124 41268109=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/107)