• MESO: Mesoscale Discussion 1060

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jun 15 01:34:05 2023
    ACUS11 KWNS 150134
    SWOMCD
    SPC MCD 150133=20
    TNZ000-MOZ000-ARZ000-150330-

    Mesoscale Discussion 1060
    NWS Storm Prediction Center Norman OK
    0833 PM CDT Wed Jun 14 2023

    Areas affected...northeastern Arkansas...the Missouri Boot heel and
    portions of western Tennessee

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

    Valid 150133Z - 150330Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Splitting supercells may continue to pose a risk for
    isolated large hail for a few more hours this evening. Convective
    trends will be monitored though severe coverage is expected to
    remain isolated and a weather watch is not expected.

    DISCUSSION...To the northeast of Severe Watch #297, isolated
    thunderstorms including a couple of splitting supercells have been
    noted across portions of northeastern AR and far southeastern MO.
    Over the last hour, these storms have slowly intensified ahead of a
    subtle southern stream shortwave trough over northeast OK and
    southern MO. Moderate buoyancy (1500-2000 J/kg of MLCAPE) and 50 kt
    of unidirectional effective shear will continue to support robust
    organized updrafts in a splitting supercell mode. Isolated large
    hail will be the primary concern with the persistent storms as they
    track slowly east/southeast over the next few hours. Storm coverage
    and longevity remains somewhat uncertain given previous convective
    overturning and the loss of daytime heating. Conditions will be
    monitored, but the lack of greater storm coverage beyond the ongoing
    storms suggests a weather watch is unlikely.

    ..Lyons/Grams.. 06/15/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5X9qZvpj3C_wx4tlni5mOdUmnp15hMTDwDZW2NrC67RezuC7hb4E_-873kCLmGOBCClQ186II= u_XadX_6bSD9rArveM$ for graphic product...

    ATTN...WFO...PAH...MEG...LZK...SGF...

    LAT...LON 36589018 36428952 35728922 35308915 35108931 35038954
    34999030 35209055 35539124 35699176 35879218 36009228
    36259214 36479167 36569101 36589018=20


    =3D =3D =3D
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