• MESO: Mesoscale Discussion 0914

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sun May 31 00:29:50 2026
    ACUS11 KWNS 310029
    SWOMCD
    SPC MCD 310029=20
    KSZ000-NEZ000-310230-

    Mesoscale Discussion 0914
    NWS Storm Prediction Center Norman OK
    0729 PM CDT Sat May 30 2026

    Areas affected...Central Kansas into south-central Nebraska

    Concerning...Severe Thunderstorm Watch 253...

    Valid 310029Z - 310230Z

    The severe weather threat for Severe Thunderstorm Watch 253
    continues.

    SUMMARY...The threat for severe wind and hail continues across
    portions of central Kansas and south-central Nebraska, including
    behind the primary band of thunderstorms where new convection is
    developing along outflow boundaries. Trends are being monitored for
    the need for downstream watch issuance.

    DISCUSSION...Several severe wind reports have been noted over the
    past two hours across central KS as two predominant bands/clusters
    of thunderstorms have emerged and spread northeast. These clusters
    currently reside within the axis of higher MLCAPE and should be
    migrating towards a region of lower buoyancy across eastern NE and
    far eastern KS (as depicted by the recent 00z TOP RAOB that sampled
    around 1800 J/kg MLCAPE along with nearly -120 J/kg MLCIN). However,
    the presence of established cold pools with both clusters, combined
    with the coming onset of the nocturnal jet, may promote a continued
    severe wind threat downstream across southeast NE and parts of
    eastern Kansas through late evening. Convective trends will continue
    to be monitored for the need for downstream watch issuance.=20

    Further southwest across south-central KS, convection continues to
    develop along the outflow boundaries associated with the initial
    thunderstorm clusters. Although storm motions will be towards the
    convectively overturned/cold pool air, convective intensity trends
    in GOES cloud-top temperatures and MRMS VIL suggest that pockets of
    sufficient buoyancy remain in place for at least a localized hail
    and wind threat over the next couple of hours - especially as
    isentropic upglide over the cold pools increases with the onset of
    the nocturnal jet.

    ..Moore.. 05/31/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!788GrTlooUxxSLFag_Q2VHfp9exqr-5yt5nR4trzYyFZ6Ge9kV1kWg3GBGyAsxxqZHY3FIhBr= xt5KSiRrmO5Uja5Bxc$ for graphic product...

    ATTN...WFO...OAX...TOP...ICT...GID...DDC...

    LAT...LON 37179753 37069803 37129860 37429911 37989955 38339974
    38669961 38919940 39139923 39449915 39799921 40109953
    40309969 40519969 40739942 40889905 40959860 40909822
    40839787 40679762 39219652 38879634 38379624 38109634
    37889654 37179753=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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