• MESO: Mesoscale Discussion 1284

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, August 13, 2018 22:44:13
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    ACUS11 KWNS 132244
    SWOMCD
    SPC MCD 132243
    NMZ000-140015-

    Mesoscale Discussion 1284
    NWS Storm Prediction Center Norman OK
    0543 PM CDT Mon Aug 13 2018

    Areas affected...Parts of northeastern New Mexico

    Concerning...Severe potential...Watch unlikely

    Valid 132243Z - 140015Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated storms may be capable of brief, marginally severe
    hail and strong, gusty winds through this evening. Watch issuance is
    not anticipated.

    DISCUSSION...Ascent on the fringe of a mid-level vorticity max has
    combined with terrain-induced circulations to produce isolated
    storms over northeast New Mexico late this afternoon. Although
    surface dew points are relatively low (in the 40s to lower 50s),
    mid-level cooling/saturation has yielded adequate elevated buoyancy
    for a couple stronger cells. As they move south, a storm or two may
    acquire transient mid-level rotation, owing to modest deep-layer
    shear provided by 20-30 kt of northerly 500mb flow. Any such cell
    will be capable of isolated hail. A few stronger gusts may be
    possible as well, given the deep/well mixed boundary layer
    environment. Despite this potential, a lack of greater coverage and organization is expected to preclude watch issuance.

    ..Picca/Grams.. 08/13/2018

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

    ATTN...WFO...ABQ...

    LAT...LON 34160483 34430546 34790580 35230587 35650566 36540535
    36910367 36220320 34860321 34250367 34160483



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