• MESO: Mesoscale Discussion 1013

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sun Jun 7 06:06:34 2026
    ACUS11 KWNS 070606
    SWOMCD
    SPC MCD 070606=20
    NDZ000-MTZ000-070800-

    Mesoscale Discussion 1013
    NWS Storm Prediction Center Norman OK
    0106 AM CDT Sun Jun 07 2026

    Areas affected...Eastern Montana into far western North Dakota

    Concerning...Severe Thunderstorm Watch 283...

    Valid 070606Z - 070800Z

    The severe weather threat for Severe Thunderstorm Watch 283
    continues.

    SUMMARY...Large hail and isolated severe gusts will remain possible
    into the overnight in eastern Montana and far western North Dakota.

    DISCUSSION...With very strong shear (70-80 kt effective in eastern
    Montana), storms in WW 283 have generally remained cellular. The
    environment will likely continue to support this storm mode, though
    small clusters may yet develop. Steep mid-level lapse rates sampled
    on this evenings GGW sounding will promote some risk of large hail.
    The threat for severe wind gusts is less clear given the
    post-frontal nature of the storms. The severe wind risk will be
    greater if storms develop along/near the cold front.

    ..Wendt.. 06/07/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6CIb5vigVbKB9KcHrac3-W3u4s5edjBnHnjekO3ASbvt1oRy9wBcOf4CGXSrAV9gYkSeKtzpd= 089Bii-gP3dOduCScY$ for graphic product...

    ATTN...WFO...BIS...BYZ...GGW...

    LAT...LON 46690651 48210544 49080439 49100301 48790248 47710326
    46810426 46470484 46480612 46690651=20

    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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