• MESO: Mesoscale Discussion 1246

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 24 22:59:40 2023
    ACUS11 KWNS 242259
    SWOMCD
    SPC MCD 242258=20
    MNZ000-NDZ000-250100-

    Mesoscale Discussion 1246
    NWS Storm Prediction Center Norman OK
    0558 PM CDT Sat Jun 24 2023

    Areas affected...far eastern North Dakota into north-central and
    northwestern Minnesota

    Concerning...Tornado Watch 371...

    Valid 242258Z - 250100Z

    The severe weather threat for Tornado Watch 371 continues.

    SUMMARY...Local tornado risk continues with isolated rotating
    storms.

    DISCUSSION...Latest surface analysis shows a warm front extending
    from east-central North Dakota east-southeastward across northern
    Minnesota, from just north of FAR (Fargo, ND) to near RCX
    (Ladysmith, WI). Near and to the north of this boundary, very
    favorable low-level shear is indicated -- veering rapidly from
    east-southeast at the surface to southerly around 800mb, and
    increasing to 30-plus kt.

    With 1000 to 1500 J/kg mixed-layer CAPE along the boundary, isolated
    cells have persistently shown low-level rotation, consistent with
    the observed low-level shear.

    As the upper low over southeastern North Dakota drifts
    southeastward, expect a rather narrow zone where the environment
    supports brief tornadoes to persist, though diurnal stabilization of
    the boundary layer through the evening suggests gradual decrease in
    tornado potential to commence later this evening.

    ..Goss.. 06/24/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7XC-ZWv-s949096r-P4bkDUIEUT_M6YmD4w1eq-8MxPJnDrmfdt-lCh827hHx_N65UKEFlJXH= TYRAK2r-Xnbo8thgb8$ for graphic product...

    ATTN...WFO...DLH...MPX...FGF...

    LAT...LON 46709714 47499746 47869652 47699504 46259460 46649589
    46709714=20


    =3D =3D =3D
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