• MESO: Mesoscale Discussion 1131

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sunday, June 14, 2026 01:02:44
    ACUS11 KWNS 140102
    SWOMCD
    SPC MCD 140102=20
    ARZ000-MOZ000-OKZ000-KSZ000-140230-

    Mesoscale Discussion 1131
    NWS Storm Prediction Center Norman OK
    0802 PM CDT Sat Jun 13 2026

    Areas affected...ENortheast Oklahoma...Southeast Kansas...Northwest
    Arkansas

    Concerning...Tornado Watch 330...

    Valid 140102Z - 140230Z

    The severe weather threat for Tornado Watch 330 continues.

    SUMMARY...Isolated supercell storms will persist this evening, while
    more widespread severe threat approaches from the northwest.

    DISCUSSION...Recent radar imagery shows three large supercell storms
    affecting the region. One is in Kay county OK, one in Benton County
    AR, and one in Butler county KS. All three storms have a history of
    large hail. The KS storm has begun to weaken at it tracks away from
    the outflow boundary, while the other two cells remain anchored near
    the boundary and in a favorable CAPE/shear parameter space for
    occasional large hail and damaging winds. The low-level jet will
    begin strengthening soon, which could also maintain/raise the risk
    of a tornado or two.

    A cluster of thunderstorms to the west of Wichita is also
    approaching this region, and is likely to congeal into a bowing line
    segment during the next 1-2 hours. This would increase the risk of
    damaging winds through 04z. However, there is uncertainty regarding
    how the westward-surging outflow from the Kay county supercell will
    affect this scenario.

    ..Hart.. 06/14/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5avCpbe24dHrcNTv9pTlJ34BiGlko75Ia2NmhWqiPlUPrBncOtkiZXKRcLXQdrPngitBovRuU= cQtXwtS6RgXZ7qRsfc$ for graphic product...

    ATTN...WFO...SGF...TSA...ICT...OUN...

    LAT...LON 37489734 37849618 36849576 36369368 35959358 35989456
    36429740 36919764 37489734=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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