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  • MESO: Mesoscale Discussion 0900

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wednesday, June 27, 2018 02:06:05
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    ACUS11 KWNS 270206
    SWOMCD
    SPC MCD 270205
    NDZ000-SDZ000-270400-

    Mesoscale Discussion 0900
    NWS Storm Prediction Center Norman OK
    0905 PM CDT Tue Jun 26 2018

    Areas affected...Western North Dakota and Northwest South Dakota

    Concerning...Severe Thunderstorm Watch 225...

    Valid 270205Z - 270400Z

    The severe weather threat for Severe Thunderstorm Watch 225
    continues.

    SUMMARY...Strong/severe storms continue throughout Watch #224. The
    threat for severe hail/wind and a brief tornado remains.

    DISCUSSION...Storms have weakened across northern portions of Watch
    #225, but severe/tornado warned storms are tracking eastward across
    southwest North Dakota and into far northwest South Dakota per radar
    mosaic. These storms have produced severe hail/wind, and MRMS MESH
    currently have hail size estimates of 2.5"+. Brief tornadoes are
    also possible with low-level veering of winds and storms interacting
    with remnant outflow boundaries. Storms should continue to track east-southeast, but should weaken across eastern North Dakota where
    the CAPE/shear environment is less favorable.

    Recent CAMs continue to show an evolution of one or more QLCSs
    across the Dakotas, and recent radar mosaic trends are mostly
    supportive of this evolution. Storms may move outside of Watch #225,
    but this poses only an isolated risk for severe weather, and it's
    unlikely that a new watch will be issued.

    ..Nauslar/Cook/Edwards.. 06/27/2018

    ...Please see www.spc.noaa.gov for graphic product...

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

    LAT...LON 45250400 46860323 47840273 48810219 49060201 49029942
    48289972 47160037 45950128 45590197 45270249 45250400



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