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  • MESO: Mesoscale Discussion 0775

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, June 17, 2018 23:48:29
    This is a multi-part message in MIME format...

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    ACUS11 KWNS 172348
    SWOMCD
    SPC MCD 172347
    NEZ000-COZ000-180115-

    Mesoscale Discussion 0775
    NWS Storm Prediction Center Norman OK
    0647 PM CDT Sun Jun 17 2018

    Areas affected...Northeast Colorado...Southwest Nebraska

    Concerning...Tornado Watch 184...

    Valid 172347Z - 180115Z

    The severe weather threat for Tornado Watch 184 continues.

    SUMMARY...Severe threat expected to continue for a few more hours,
    but is expected to wane by 03Z.

    DISCUSSION...A recent uptick in convection was noted in northeast
    Colorado, likely enhanced by low-level convergence associated with
    the colliding of two boundaries north of the Palmer Divide. Large
    hail and damaging winds, along with the threat of a brief tornado
    exists, mainly with the storm along the Washington/Yuma county
    border, though this storm has recently begun to show signs of
    weakening within the last few scans.

    Additionally, buoyancy across WW 0184 should be begin to markedly
    decrease with the loss of daytime heating, diminishing the overall
    severe threat with time. Convective development in areas farther
    south from the southward moving boundary located from just south of
    AKO to LBF has been sparse at best and some of the latest
    convectional allowing model guidance suggests that any new storm
    development will be confined to areas along or immediately ahead of
    the boundary. As such, WW 0184 will likely be allowed to expire by
    03Z.

    ..Squitieri/Elliott/Guyer.. 06/17/2018

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

    ATTN...WFO...LBF...GLD...BOU...

    LAT...LON 39360360 39840343 40380328 41030256 41360218 41720188
    42020141 42100079 42060044 41780012 41340012 40900044
    40550102 39940217 39650266 39440308 39360360



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