• MESO: Mesoscale Discussion 0769

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, June 17, 2018 20:25:29
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    ACUS11 KWNS 172025
    SWOMCD
    SPC MCD 172025
    COZ000-WYZ000-UTZ000-172300-

    Mesoscale Discussion 0769
    NWS Storm Prediction Center Norman OK
    0325 PM CDT Sun Jun 17 2018

    Areas affected...Northeast UT...Southwest WY

    Concerning...Severe potential...Watch unlikely

    Valid 172025Z - 172300Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated strong/locally severe thunderstorms are possible
    this afternoon into early evening.

    DISCUSSION...A few strong thunderstorms have developed across
    northeast UT, with building cumulus also noted across southwest WY.
    Modest heating and sufficient low-level moisture has resulted in
    MLCAPE values to increase to near 500 J/kg, and additional
    thunderstorm development is expected this afternoon. Low-level
    southeasterly flow veering to moderate southwesterly flow aloft is
    resulting in relatively long hodographs, and there is some potential
    for at least weak supercell structures to develop, with an attendant
    threat of marginally severe hail and strong wind gusts. The overall
    threat is expected to remain too low for watch issuance.

    ..Dean/Grams.. 06/17/2018

    ...Please see www.spc.noaa.gov for graphic product...

    ATTN...WFO...RIW...GJT...SLC...

    LAT...LON 41941161 41971111 42110958 42010892 40630907 40290911
    40320971 40331005 40381050 40381097 40451164 41071164
    41941161



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