• MESO: Mesoscale Discussion 1033

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Jun 8 23:02:56 2026
    ACUS11 KWNS 082302
    SWOMCD
    SPC MCD 082302=20
    KSZ000-NEZ000-090030-

    Mesoscale Discussion 1033
    NWS Storm Prediction Center Norman OK
    0602 PM CDT Mon Jun 08 2026

    Areas affected...portions of central and eastern Kansas...and far
    southern Nebraska

    Concerning...Tornado Watch 287...

    Valid 082302Z - 090030Z

    The severe weather threat for Tornado Watch 287 continues.

    SUMMARY...Severe storms ongoing within Tornado Watch 287 are likely
    to remain severe this evening with a threat for all hazards.
    Additional development and upscale growth is possible but uncertain. Regardless, the threat for severe weather should increase farther
    east this evening. A downstream watch will likely be needed.

    DISCUSSION...Several robust supercells have matured along the
    frontal boundary this afternoon from southern NE into northern KS
    across Tornado Watch 287. The environment remains hot and extremely
    unstable with dewpoints in the 70s F supporting MLCAPE of 4000-5000
    J/kg. This, along with deep-layer shear of 35-40 kt will continue to
    support a robust severe environment favorable for large to very
    large hail. Damaging winds and a few tornadoes are also possible
    with more persistent supercell structures despite modest low-level
    shear.

    Vigorous new storm development over northern KS suggests the
    potential for storm clustering and upscale growth this evening. As
    convective coverage increases, cold pool consolidation may
    eventually favor the development of an organized cluster or bowing
    segment. This would increase the threat for damaging winds as the
    system moves southeastward this evening. The larger buoyancy could
    potentially support some significant gusts and the potential for
    QLCS tornadoes as well.

    While the exact convective evolution is uncertain, the environment
    downstream of WW287 is supportive of a severe weather threat. This
    threat should increase over the next hour or so as storms spread
    eastward. A downstream Watch is likely this evening, though
    uncertainty on the type and timing remains.

    ..Lyons/Gleason.. 06/08/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7rZzCi0ADdiMoIkBuEcj0iY6ry0iZYk8TaURj-V5OsMGlTMM24tqXNETMYp_hq7fwSwYGUpCm= sFa6Y-CK92DHKvZyKY$ for graphic product...

    ATTN...WFO...OAX...TOP...ICT...GID...DDC...GLD...

    LAT...LON 40489919 39789635 39449617 38959602 38399621 37979639
    37959703 38319834 38549935 38739975 38979996 39830015
    40489919=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
    MOST PROBABLE PEAK WIND GUST...75-90 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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