• MESO: Mesoscale Discussion 1022

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Mon Jun 8 04:09:16 2026
    ACUS11 KWNS 080409
    SWOMCD
    SPC MCD 080408=20
    NDZ000-SDZ000-080545-

    Mesoscale Discussion 1022
    NWS Storm Prediction Center Norman OK
    1108 PM CDT Sun Jun 07 2026

    Areas affected...portions of central North Dakota and northern South
    Dakota

    Concerning...Severe Thunderstorm Watch 285...

    Valid 080408Z - 080545Z

    The severe weather threat for Severe Thunderstorm Watch 285
    continues.

    SUMMARY...A few severe gusts remain possible tonight mainly over
    north-central North Dakota. Convection is generally weakening and a
    downstream watch appears unlikely.

    DISCUSSION...Severe storms across WW285 have shown a decrease in
    intensity over the last hour. This trend is likely to continue as
    these storms move eastward into a less unstable air mass across ND.
    Still, a few severe gusts are possible, mainly over portions of
    north-central ND where the cold pool is the strongest. Thus some
    severe risk will continue over WW285 which has been extended in time
    to 0600z. A downstream watch is unlikely given the expected
    weakening as the line moves into eastern ND.

    Farther south, additional convective development across northwestern
    SD is likely occurring behind the surface front/outflow from prior
    convection. Recent reports of 50-55 mph gusts from SDDOT sensors
    suggest some potential for isolated severe gusts through the
    remainder of this evening and into the overnight hours. However,
    increasing inhibition lends low confidence to any sustained severe
    risk.

    ..Lyons/Gleason.. 06/08/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8vK3btrKFHH1R4apIcqaJIn-TlGyeeuivDqzoYts7oO5g8SPPXpbU3itWrj80w7Uk6a9xau4P= d4dkO2FRdcMfMMgnDk$ for graphic product...

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

    LAT...LON 49050106 49079956 49089847 46699839 46069907 45160069
    44960161 45000259 45510274 46000201 46940062 47440044
    49050106=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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