• MESO: Mesoscale Discussion 1590

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, October 22, 2018 20:13:41
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    ACUS11 KWNS 222013
    SWOMCD
    SPC MCD 222012
    NMZ000-AZZ000-222115-

    Mesoscale Discussion 1590
    NWS Storm Prediction Center Norman OK
    0312 PM CDT Mon Oct 22 2018

    Areas affected...Southeast Arizona and Far Southwest New Mexico

    Concerning...Severe potential...Watch unlikely

    Valid 222012Z - 222115Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated thunderstorms may develop in the next few hours
    capable of producing large hail and gusty winds.

    DISCUSSION...Diabatic heating has led to the development of an
    instability axis extending across portions of southeastern AZ and
    far southwest NM, where surface dewpoints are in the mid to upper
    50s F and resulting MLCAPE values are approaching 1000-1500 J/kg.
    The latest satellite observations show cumulus developing primarily
    along favorable localized terrain features. Should this trend
    continue (despite weak upper-level forcing for ascent), a few
    isolated storms may develop and become organized in the presence of
    effective bulk shear in the 30-40 kt range. Large hail and some
    localized wind gusts are possible.

    ..Karstens/Dial.. 10/22/2018

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

    ATTN...WFO...ABQ...EPZ...TWC...FGZ...PSR...

    LAT...LON 31371086 32271143 33261152 33721081 33460955 33180866
    32420809 31810827 31350865 31371086



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