• MESO: Mesoscale Discussion 0741

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sun May 17 00:02:05 2026
    ACUS11 KWNS 170002
    SWOMCD
    SPC MCD 170001=20
    KSZ000-NEZ000-170200-

    Mesoscale Discussion 0741
    NWS Storm Prediction Center Norman OK
    0701 PM CDT Sat May 16 2026

    Areas affected...northwest into north-central Kansas...southwest
    into south-central Nebraska

    Concerning...Severe Thunderstorm Watch 209...211...

    Valid 170001Z - 170200Z

    The severe weather threat for Severe Thunderstorm Watch 209, 211
    continues.

    SUMMARY...A corridor of significant damaging winds appears to be
    developing across northwest Kansas. Gusts over 75-80 mph may occur
    across much of northern Kansas into southern Nebraska this evening.
    Wind-driven hail is possible as well.

    DISCUSSION...A broken line of supercells producing large hail
    currently extends from southwest NE across central NE and into IA
    near the stationary front, with most of this activity moving very
    slowly. Large hail and very heavy rain remains likely with this
    activity.

    To the southwest, storms moving out of eastern CO and into northwest
    KS have recently shown signs of increased outflow, with radar
    indications of 60-70 kt inbound to KGLD radar. Additional supercells
    have formed near Goodland KS just ahead of the developing bow as
    well, resulting in a chaotic mixture of storm modes.

    Given the steep lapse rate environment, backed/easterly low-level
    winds to maximize storm-relative inflow, and increasing low-level
    jet this evening, a damaging MCS/bow echo is anticipated to develop
    out of the northwest KS activity. This potential system will move
    across northern KS and southern NE, with widespread severe winds
    likely. Significant gusts over 75 mph will be possible, with
    isolated stronger gusts.

    ..Jewell.. 05/17/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8fiWJP30-ND0YOt4bvZBzzIIbZ0jY7umOp7_QGOBBXYwNSTcS6B_yDaaNbclTIoYSrzoBylZe= wpxvKicTcj6qUoTTTE$ for graphic product...

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

    LAT...LON 40190187 40520142 41009878 40989798 40659743 39539752
    39259804 39099935 38980204 39740201 40190187=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 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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    * Origin: Capitol City Online (1:2320/107)