• MESO: Mesoscale Discussion 1053

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Wed Jun 10 00:19:17 2026
    ACUS11 KWNS 100019
    SWOMCD
    SPC MCD 100018=20
    NDZ000-SDZ000-100215-

    Mesoscale Discussion 1053
    NWS Storm Prediction Center Norman OK
    0718 PM CDT Tue Jun 09 2026

    Areas affected...central Dakotas

    Concerning...Tornado Watch 294...

    Valid 100018Z - 100215Z

    The severe weather threat for Tornado Watch 294 continues.

    SUMMARY...Damaging wind potential increasing across northern
    portions of WW294 in central North Dakota. Tornado potential may
    increase over the next couple of hours.

    DISCUSSION...Thunderstorm development continues along the cold front
    in the central Dakotas this evening. Mode has favored quick
    transition from supercell to clusters given mean layer shear vectors
    largely parallel to the front. Nonetheless, a few supercells have
    produced hail up to 1.5-3 inches in diameter.=20

    Across central North Dakota, radar analysis shows the cluster in
    Ward/Mclean County developing a bowing structure, with winds around
    60-75 kts around 1 kft as viewed from KBIS and KMBX. Winds up to 72
    mph have been reported near Sawyer, ND. The area ahead of this line
    will be a favored region for significant damaging wind (75-80+ mph)
    potential in the short term due to steep low level lapse rates,
    evaporative processes, and fast storm motions with these storms.

    Tornado potential continues and may increase through the evening.
    Initial storms developed in the lower dew point air mass across the
    western Dakotas and are now moving into a region of richer low-level
    moisture. While the mode may not favor maintenance of discrete
    cells, line embedded circulations will pose potential for tornadoes
    through the evening as the low-level jet enhances low level SRH.

    ..Thornton.. 06/10/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_ytLlwZ-_lqprgtyWJupt8lXk1s3vbI93v2v2YVVoEmH3-Ys4iNkRfkSzFAAwpDJ7knYytveI= p2ZEue6UPH83GEE6UE$ for graphic product...

    ATTN...WFO...FGF...ABR...BIS...UNR...

    LAT...LON 46880158 47580256 48350337 48830356 49020348 49060308
    48880078 48410000 47439963 46439962 45769983 45060004
    44410020 44070082 43830183 44760183 46880158=20

    MOST PROBABLE PEAK TORNADO INTENSITY...100-125 MPH
    MOST PROBABLE PEAK WIND GUST...75-90 MPH
    MOST PROBABLE PEAK HAIL SIZE...2.00-3.50 IN


    =3D =3D =3D
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