• MESO: Mesoscale Discussion 1152

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Tuesday, June 16, 2026 04:41:32
    ACUS11 KWNS 160441
    SWOMCD
    SPC MCD 160440=20
    KSZ000-160645-

    Mesoscale Discussion 1152
    NWS Storm Prediction Center Norman OK
    1140 PM CDT Mon Jun 15 2026

    Areas affected...Portions of western KS

    Concerning...Severe potential...Watch unlikely=20

    Valid 160440Z - 160645Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated hail and gusty winds may occur with thunderstorms
    over the next couple of hours, but watch issuance is not expected.

    DISCUSSION...A modest strengthening of the low-level jet this
    evening per recent VWPs from KDDC has encouraged isolated convection
    to develop along/near a weak surface trough/wind shift across parts
    of western KS. While the 00Z DDC observed sounding showed minimal
    instability, a modest increase in low-level moisture has occurred
    over the past few hours per recent mesoanalysis estimates. This is
    supporting up to 1000-1500 J/kg of MUCAPE across a small portion of
    western KS. Around 20-30 kt of southerly low-level flow veers
    strongly and increases with height through mid/upper levels, which
    is aiding strong deep-layer shear of 40-50+ kt. One updraft has
    matured into a supercell across far southwest KS, and should
    continue to pose an isolated large hail threat in the near term.
    Other cells farther east may also attempt to strengthen, but weaker
    instability with eastward extent may tend to limit the number of
    stronger cells that can mature. Regardless, some hail and gusty wind
    threat will likely continue for the next couple of hours. But, the
    overall limited spatial/temporal extent of the severe threat tonight
    is expected to remain too isolated for watch issuance.

    ..Gleason.. 06/16/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_IkPCe-1EeOosoTvjpdYLbXWK5fYmpi3_AmrouWXVeOzWPj6Xf-ycOxQ6hmFJF4OxYNZg7tKj= 9NlEMVv4oPQhgDrBEk$ for graphic product...

    ATTN...WFO...DDC...GLD...

    LAT...LON 37980200 38530109 38840028 38639994 38129983 37550050
    37160114 37180197 37980200=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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