• MESO: Mesoscale Discussion 0976

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thu Jun 4 01:38:02 2026
    ACUS11 KWNS 040137
    SWOMCD
    SPC MCD 040137=20
    MNZ000-SDZ000-NDZ000-040300-

    Mesoscale Discussion 0976
    NWS Storm Prediction Center Norman OK
    0837 PM CDT Wed Jun 03 2026

    Areas affected...Parts of eastern SD into west-central/southwest MN

    Concerning...Tornado Watch 271...

    Valid 040137Z - 040300Z

    The severe weather threat for Tornado Watch 271 continues.

    SUMMARY...Some threat for hail, damaging wind, and possibly a
    tornado may continue through the evening.

    DISCUSSION...A small storm cluster with a history of producing
    severe gusts across far northeast SD is approaching the SD/ND/MN
    border intersection as of 0130 UTC. Low-level moisture and buoyancy
    weaken with eastward extent, which will tend to limit the longevity
    of the severe threat with this cluster into west-central MN.
    However, given the current organization of this cluster, some threat
    for damaging wind and isolated hail could spread east of WW 271
    before a definitive weakening trend occurs. Given the expected
    weakening trend with time, the need for downstream watch issuance is uncertain.=20=20

    Farther south, relatively disorganized convection is ongoing across east-central SD. The environment across this area remains somewhat
    favorable, with moderate buoyancy and sufficient deep-layer shear
    for organized convection. The ongoing convection could produce
    sporadic hail and isolated strong/damaging gusts. It remains
    possible that a supercell or two could evolve across this area
    through dusk, which would result in an increasing hail threat, along
    with some tornado potential.

    ..Dean/Guyer.. 06/04/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4o-znfUkpDpw1jAhHbIQ5GYLLACihq6YpBgfjdW71Uk6rS_YW-e4EIDmWgNbx8UQUwHx7ZaMI= Q79e_Pm9geSoP5f-1s$ for graphic product...

    ATTN...WFO...MPX...FGF...FSD...ABR...

    LAT...LON 44799775 46009719 46189673 46249620 46209568 45649563
    45139564 44689573 44469600 44389617 44269648 44189712
    44229753 44799775=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-110 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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