• MESO: Mesoscale Discussion 1990

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Aug 25 22:39:24 2024
    ACUS11 KWNS 252239
    SWOMCD
    SPC MCD 252239=20
    SDZ000-MTZ000-WYZ000-260045-

    Mesoscale Discussion 1990
    NWS Storm Prediction Center Norman OK
    0539 PM CDT Sun Aug 25 2024

    Areas affected...Northeast WY into western SD and extreme southeast
    MT

    Concerning...Severe potential...Watch unlikely=20

    Valid 252239Z - 260045Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated strong to severe storms are possible into early
    evening.

    DISCUSSION...Some recent intensification has been noted as a cluster
    of high-based convection and related outflow have moved into a
    post-frontal regime across the Black Hills. Short-term evolution of
    this convection remains uncertain, with more favorable
    moisture/instability with eastward extent, but also substantial
    CINH. However, with relatively steep low/midlevel lapse rates and
    favorable deep-layer shear in place, some increase in storm coverage
    and organization is possible. Strong to locally severe storms
    capable of localized severe gusts and hail will be possible into
    early evening. Watch issuance is currently considered unlikely, but
    will be reevaluated if trends support a more-organized severe
    threat.

    ..Dean/Gleason.. 08/25/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-rm6ohCZtML3JXwITJOwr3CfNmcju0zAwg5sB42slWQiAlH47oTS5-byoqQgtN3ygZ3HErfRV= elVu02orjmW3Rh2ZRI$ for graphic product...

    ATTN...WFO...UNR...BYZ...

    LAT...LON 44680505 45630417 45500213 43750193 43140380 44250441
    44680505=20


    =3D =3D =3D
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