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  • MESO: Mesoscale Discussion 0613

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Friday, June 01, 2018 21:04:46
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 012104
    SWOMCD
    SPC MCD 012104
    SDZ000-NDZ000-MTZ000-WYZ000-012230-

    Mesoscale Discussion 0613
    NWS Storm Prediction Center Norman OK
    0404 PM CDT Fri Jun 01 2018

    Areas affected...Southeast Montana...northeast Wyoming...far western
    South Dakota...far southwestern North Dakota

    Concerning...Severe Thunderstorm Watch 143...

    Valid 012104Z - 012230Z

    The severe weather threat for Severe Thunderstorm Watch 143
    continues.

    SUMMARY...Severe threat continues across Severe Thunderstorm Watch
    0143.

    DISCUSSION...A few bowing segments and transient supercells are
    currently located across eastern Montana into far northeast Wyoming
    and are moving northeastward towards the east portions of the watch.
    The 40-50 kts effective bulk shear and 1500+ J/kg MLCAPE that remain
    in place across the pre-convective environment will continue to
    support a continued hail/wind threat over the next few hours.

    Storms in far northeast Wyoming are projected to move into an
    environment of higher instability, and the associated severe threat
    may increase as the storms move into northwest South Dakota within
    the next one and a half hours.

    Substantial low-level turning has occurred across western portions
    of the watch and early cancellation may be needed. Please refer to
    Watch Status messages for further updates.

    ..Squitieri/Cook/Guyer.. 06/01/2018

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

    ATTN...WFO...BIS...UNR...CYS...BYZ...GGW...RIW...

    LAT...LON 43660678 44240651 44710638 45030630 45800627 46380624
    47050621 47340602 47530580 47550463 47530282 47170277
    46790280 45900290 44500295 43890299 43420298 43400504
    43400603 43380666 43660678



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