• MESO: Mesoscale Discussion 1456

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 7 19:13:35 2023
    ACUS11 KWNS 071913
    SWOMCD
    SPC MCD 071913=20
    MNZ000-SDZ000-NDZ000-072115-

    Mesoscale Discussion 1456
    NWS Storm Prediction Center Norman OK
    0213 PM CDT Fri Jul 07 2023

    Areas affected...parts of northeastern SD...southeastern ND...and
    northern MN

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

    Valid 071913Z - 072115Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Sporadic marginally severe hail, a few severe gusts, and a
    landspout or two may occur this afternoon across northeastern South
    Dakota, southeastern North Dakota, and northwestern Minnesota. A
    watch is not anticipated.

    DISCUSSION...Storms are developing along a cold front across
    northern South Dakota, southeastern North Dakota, and northern
    Minnesota this afternoon. Ahead of the front is a modifying outflow
    air mass from convection this morning, with temperatures in the mid
    70s F and dewpoints in the mid 60s F. Along the front, an
    environment exists with ample vertical vorticity and 150 J/kg of 0-3
    km MLCAPE per mesoanalysis. This may yield a few landspout tornadoes
    with initial isolated cells along the front. Additionally, some
    marginally severe hail may occur. With time, expect cold pools to
    congeal into a few loosely organized clusters with some potential
    for damaging gusts. Storm longevity may be limited by stable
    unmodified outflow air to the south.

    ..Supinie/Mosier.. 07/07/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7HMk2y1Eh-mLITKPTWvZM-TbaKS9ocNrYl0dGfkHnqW5fmYInppp5Jc1lRd24sIsqP8KU2V6X= GaYnre2V7J3g5-jbqA$ for graphic product...

    ATTN...WFO...DLH...MPX...FGF...ABR...BIS...UNR...

    LAT...LON 46529884 47539636 47969486 48099391 47959268 47319274
    46529396 45789643 45339765 44509956 43880047 43630134
    43900192 44280211 44830213 45230204 45800166 46239994
    46529884=20


    =3D =3D =3D
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