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  • MESO: Mesoscale Discussion 2081

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Sep 5 00:06:20 2023
    ACUS11 KWNS 050006
    SWOMCD
    SPC MCD 050005=20
    NDZ000-SDZ000-050130-

    Mesoscale Discussion 2081
    NWS Storm Prediction Center Norman OK
    0705 PM CDT Mon Sep 04 2023

    Areas affected...South-central North Dakota...north-central South
    Dakota

    Concerning...Severe Thunderstorm Watch 667...

    Valid 050005Z - 050130Z

    The severe weather threat for Severe Thunderstorm Watch 667
    continues.

    SUMMARY...A compact bowing segment will be capable of scattered
    severe wind gusts. A more focused corridor of significant winds
    (70-90 mph) is also possible.

    DISCUSSION...A compact bowing segment continues to move northeast at
    around 40-45 kts along the surface cold front. This line is being
    aided by a negatively tilted shortwave trough in eastern Wyoming.
    Recent mesonet data in South Dakota observed 60-70 mph winds with
    this activity. KBIS velocity data shows strong inbound velocities
    (around 70 kts at 6500 ft). Given the speed of the line,
    convectively augmented severe gusts are probable. A narrow corridor
    of significant wind gusts (70-90 mph) will exist and may eventually
    impact the Bismarck vicinity in the next 60-90 minutes. Convection
    along the southern flank of the bowing segment has not been able to
    become sustained, likely in part due to drier air. However, storms
    in southwestern South Dakota will continue into central South Dakota
    were additional agitated cumulus are currently developing on visible
    satellite.

    ..Wendt.. 09/05/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-wenx4vHsN1e49f46UhfNv67bVLcGuToS6W4rjHBP-7IZHCJoToJ3AiQlEXUBEzWUmA5_dlQn= CRHpX8jSSot3irM_RA$ for graphic product...

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

    LAT...LON 45950252 46450198 47060074 47189976 46999939 46369951
    45500075 45400161 45950252=20


    =3D =3D =3D
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