• MESO: Mesoscale Discussion 1735

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jul 27 05:54:06 2023
    ACUS11 KWNS 270554
    SWOMCD
    SPC MCD 270553=20
    MNZ000-NDZ000-270800-

    Mesoscale Discussion 1735
    NWS Storm Prediction Center Norman OK
    1253 AM CDT Thu Jul 27 2023

    Areas affected...Southeast ND...Northern MN

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

    Valid 270553Z - 270800Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated hail and/or damaging gusts possible for the next
    few hours across far southeast ND and northern MN.

    DISCUSSION...A cluster of strong to occasionally severe
    thunderstorms has developed amid warm-air advection, within the warm
    sector, ahead of a weak cold front. Environment throughout this warm
    sector is characterized by stable low levels, but steep mid-level
    lapse rates and modest mid-level moisture supporting elevated
    storms. Forecast soundings suggest these storms are likely based
    between 850 and 700 mb. Mesoanalysis estimates MUCAPE is around
    2500-3000 J/kg, with effective shear near 40 kt. These environmental
    conditions support organized updrafts capable of hail, and a few
    supercells have already developed across the region.=20

    Dry low to mid-levels will likely impact storm longevity as they
    move east of the primary warm-air advection zone. These conditions
    favor a more outflow-dominant storm structure with eastern extent.
    Despite low-level stability, there is still some chance for a few
    stronger surface gusts, particularly if cold pools within the
    cluster can amalgamate. Any gusts will likely remain below severe
    thresholds.

    ..Mosier/Edwards.. 07/27/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6y1NpJfsOuO1DKlOeOhLjOwMZxWpHcNhCyh_Cq5aOxcsbDBy_kf2nII7RIp_HRAqmgzHOHchK= zzUuzpMD8hb4qmJh7M$ for graphic product...

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

    LAT...LON 48629450 48719399 48649335 48349254 47699230 46999285
    46299409 46019584 46559820 47889609 48629450=20


    =3D =3D =3D
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