• MESO: Mesoscale Discussion 1122

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jun 5 18:22:14 2025
    ACUS11 KWNS 051821
    SWOMCD
    SPC MCD 051820=20
    KSZ000-OKZ000-COZ000-NMZ000-052015-

    Mesoscale Discussion 1122
    NWS Storm Prediction Center Norman OK
    0120 PM CDT Thu Jun 05 2025

    Areas affected...Southeast Colorado into southwest Kansas and parts
    of the Oklahoma Panhandle

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

    Valid 051820Z - 052015Z

    Probability of Watch Issuance...80 percent

    SUMMARY...Thunderstorms developing across southeast Colorado should
    intensify through the afternoon, and eventually migrating into
    southwest Kansas and parts of the Oklahoma Panhandle late this afternoon/evening. Watch issuance is likely within the next hour or
    so to address this threat.

    DISCUSSION...Latest GOES imagery shows a few deepening towers with
    occasional lightning flashes along a surface convergence
    band/surface trough emanating southwestward from a weak meso-low.
    This boundary denotes the northwestward extent of the richer
    low-level moisture (dewpoints in the low to mid 60s) and greater
    buoyancy. A warm advection regime across the region, coupled with
    somewhat muted diurnal heating, will continue to expand the viable
    warm sector downstream into southwest KS as well as bolster overall
    buoyancy magnitudes (MLCAPE likely up to 2000-2500 J/kg by mid to
    late afternoon). While some residual capping is evident in stable
    billow clouds immediately downstream from the developing convection,
    the overall destabilization trend should favor continued maturation
    of the incipient storms through mid-afternoon across southeast CO. Southeasterly low-level flow beneath 30-40 knot mid-level winds will
    support very elongated hodographs favorable for initially discrete
    supercells capable of producing large to very large hail (possibly
    up to 2.5-3.5 inches in diameter). Strengthening southerly flow
    within the 1-3 km layer through late afternoon will promote an
    increasing tornado threat before greater upscale growth occurs later
    this evening across southwest KS/northwest OK.

    ..Moore/Thompson.. 06/05/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8HzjfqH0lksQ4kFfcsCtImz2JxllorrECr2B72miohXnBXWqx4VI4kk_y_p7MTq2E0RcUrn92= LrJFm7NbGApOtXggcg$ for graphic product...

    ATTN...WFO...DDC...GLD...AMA...PUB...ABQ...

    LAT...LON 37170379 37500362 38360212 38370202 38400140 38290067
    38040022 37880009 37750001 37349997 36990014 36820036
    36700062 36670096 36850326 36910366 37170379=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-130 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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