• MESO: Mesoscale Discussion 1530

    From COD Weather Processor@1:2320/127 to wx-storm@lists.illinois.edu on Tue Jul 7 03:35:10 2026
    ACUS11 KWNS 070335
    SWOMCD
    SPC MCD 070334=20
    WIZ000-MNZ000-SDZ000-070500-

    Mesoscale Discussion 1530
    NWS Storm Prediction Center Norman OK
    1034 PM CDT Mon Jul 06 2026

    Areas affected...northeast SD...central MN

    Concerning...Severe Thunderstorm Watch 468...

    Valid 070334Z - 070500Z

    The severe weather threat for Severe Thunderstorm Watch 468
    continues.

    SUMMARY...The threat for strong to locally severe gusts capable of
    wind damage will continue into the early overnight. Peak gusts
    50-65 mph are possible with the stronger surges and inflections
    within the squall line.

    DISCUSSION...Radar mosaic shows a mature squall line extending from
    northeast SD east-northeastward across central MN late this evening.
    Despite gradual nocturnal cooling, the boundary layer remains
    supportive of stronger downdrafts penetrating through increased
    SBCINH. The deeper thunderstorm cores will preferentially favor the
    western 1/2 to 1/3 of the squall line where both the lead gust front
    and parent updrafts have not become substantially displaced, and in
    closer proximity to higher theta-e. As a result, the strong to
    locally severe wind threat will favor the western half of of the
    Watch over the next couple of hours but perhaps also extend farther
    east where small-scale bowing segments have matured.

    ..Smith.. 07/07/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_XXJtJ38J4BD841_ci-i6S9aXA_Jriyv0LarKipNV5MsjowRzYD9lf9rF9mfdXFziC1vMi-EA= Zc-c7dUFeilvr_Ay3M$ for graphic product...

    ATTN...WFO...DLH...MPX...ABR...

    LAT...LON 45539301 44809587 44739682 44889723 45369733 46149379
    46459359 46629339 46609284 46379248 46069239 45539301=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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    * Origin: Capitol City Weather Station (1:2320/127)