• MESO: Mesoscale Discussion 1462

    From COD Weather Processor@1:2320/127 to wx-storm@lists.illinois.edu on Fri Jul 3 05:43:39 2026
    ACUS11 KWNS 030543
    SWOMCD
    SPC MCD 030543=20
    SDZ000-030715-

    Mesoscale Discussion 1462
    NWS Storm Prediction Center Norman OK
    1243 AM CDT Fri Jul 03 2026

    Areas affected...Parts of southwest/south-central SD

    Concerning...Severe Thunderstorm Watch 441...

    Valid 030543Z - 030715Z

    The severe weather threat for Severe Thunderstorm Watch 441
    continues.

    SUMMARY...Some severe threat may spread eastward into the early
    overnight hours.

    DISCUSSION...A small, bowing storm cluster is moving across
    southwest SD as of 0535 UTC. This cluster is likely somewhat
    elevated, but MUCAPE of near/above 2000 J/kg and moderate deep-layer
    shear (as analyzed in recent objective mesoanalyses) within a
    low-level warm-advection regime will help to maintain this cluster
    in the short term as it moves eastward. Recent observed wind gusts
    have generally been subsevere, and this trend may continue given the
    downstream low-level stability. However, localized severe gusts
    cannot be ruled out given the current organized nature of this
    cluster. Isolated hail will also be possible, though the primarily
    linear mode may temper this threat.=20

    The current expectation is for the severe threat to remain
    relatively isolated. However, this system will continue to be
    monitored for any uptick in the organized-severe threat (and any
    need for downstream watch issuance) into the overnight hours.

    ..Dean/Mosier.. 07/03/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5-tuEL4PX3yJ7SjlKGEjqYqyaWweE_7X9aNXpRebPIrr9ZHiuVG1HB1_f5G2FAbpdNY2JMIDI= HXrBuPXS72hLA8CjSo$ for graphic product...

    ATTN...WFO...ABR...UNR...

    LAT...LON 43590179 43620179 43990177 44280186 44410143 44460070
    44400014 44190009 43999999 43810010 43600030 43550104
    43590179=20

    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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    * Origin: Capitol City Weather Station (1:2320/127)