• MESO: Mesoscale Discussion 1025

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, July 09, 2018 23:58:27
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    ACUS11 KWNS 092358
    SWOMCD
    SPC MCD 092357
    AZZ000-CAZ000-100130-

    Mesoscale Discussion 1025
    NWS Storm Prediction Center Norman OK
    0657 PM CDT Mon Jul 09 2018

    Areas affected...Southwest AZ

    Concerning...Severe potential...Watch unlikely

    Valid 092357Z - 100130Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A cluster of strong to severe storms should continue
    progressing west-southwest from the Phoenix metro area towards the
    Lower Colorado Valley. 40-65 kt gusts will be common through about
    02-03Z. Given the ongoing nature of the hazard and limited
    spatiotemporal extent of the downstream threat, a watch is not
    anticipated.

    DISCUSSION...A multicell cluster has organized across the Phoenix
    metro area south towards the international border. KPHX measured a
    gust to 62 kt at 2335Z. This cluster has established a cold pool
    with temperatures falling into the 60s, while 100-108 temperatures
    persist ahead of the line. Given the presence of 20-25 kt
    low/mid-level easterlies, this type of flow regime will remain
    favorable for sustenance of a multicell cluster westward along the
    Gila Valley towards the Yuma area.

    ..Grams/Broyles.. 07/09/2018

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

    ATTN...WFO...TWC...PSR...

    LAT...LON 33841221 32831227 32231244 31961272 32261396 32501447
    33131455 33751448 33931402 33841221



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