• MESO: Mesoscale Discussion 1219

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sunday, June 21, 2026 01:30:07
    ACUS11 KWNS 210130
    SWOMCD
    SPC MCD 210129=20
    KSZ000-COZ000-210300-

    Mesoscale Discussion 1219
    NWS Storm Prediction Center Norman OK
    0829 PM CDT Sat Jun 20 2026

    Areas affected...portions of western into central Kansas

    Concerning...Severe Thunderstorm Watch 358...359...

    Valid 210129Z - 210300Z

    The severe weather threat for Severe Thunderstorm Watch 358, 359
    continues.

    SUMMARY...Severe wind gusts exceeding 75 mph will remain a concern
    over the next few hours with a south-southeastward progressing MCS.

    DISCUSSION...A cold-pool-driven MCS continues to propagate to the east-southeast across western KS, with a history of 60-100 mph wind
    gusts. The DDC 00Z observed sounding, which is well ahead of the
    MCS, depicts an elongated hodograph and over 50 kts of effective
    bulk shear, which should aid ongoing storms to sustain a bowing MCS
    structure. However, while the 00Z observed sounding shows 8.5+ C/km
    mid-level lapse rates preceding the MCS, a relatively
    neutral/slightly stable 850-700 mb layer may eventually encourage a
    weakening trend in the next few hours given nocturnal cooling. This
    trend is also suggested by the latest HRRR deterministic and WoFs
    ensemble runs. Until then though, severe gusts (a few potentially
    exceeding 75 mph) remain possible through at least 04Z.

    ..Squitieri.. 06/21/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8l5KCnd51BfHNShcXud4E1Wv__N_UNsPwfkOqC2nwDJJVeICA3mOwDPCVxGU8rNqD7jbnJifY= 0bgqdz2ugCzH3Mm2RI$ for graphic product...

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

    LAT...LON 38310205 38900009 39259896 39229818 38929748 38629729
    38239752 37949826 37699918 37630004 37650065 37780181
    38310205=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...75-90 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.28-Linux
    * Origin: Capitol City Online (1:2320/107)