• MESO: Mesoscale Discussion 0618

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat May 15 17:49:28 2021
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    ACUS11 KWNS 151749
    SWOMCD
    SPC MCD 151748=20
    TXZ000-151915-

    Mesoscale Discussion 0618
    NWS Storm Prediction Center Norman OK
    1248 PM CDT Sat May 15 2021

    Areas affected...Deep South TX

    Concerning...Severe potential...Watch unlikely=20

    Valid 151748Z - 151915Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Damaging wind gusts and isolated hail are possible within
    the vicinity of the Rio Grande River across Hidalgo and Cameron
    Counties over the next hour or so.

    DISCUSSION...Recent KBRO radar imagery has shown increased forward
    progression of the convective line moving across the Lower Rio
    Grande Valley. In addition, brief low-level rotation was observed
    within a cell ahead of the line. Environment downstream of this line
    is characterized by moderate east-southeasterly surface winds and
    dewpoints in the low 70s. This type of environment should provide
    ample inflow for maintenance of the ongoing line as it progresses
    eastward. Given the recent radar signatures and overall convective
    evolution, damaging wind gusts appear probable in the vicinity of
    the Rio Grande River across Hidalgo and Cameron Counties. Isolated
    hail may also occur.

    ..Mosier/Guyer.. 05/15/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!rd00Trf9aJZ_cFoR0tAK1q8UN2QHwgEO0mJVrH4OKigy-2l-qfgkaXrse9f8El3ob9ihO3o0$=
    for graphic product...

    ATTN...WFO...BRO...

    LAT...LON 26419852 26619819 26529743 26019727 25679745 25859851
    26419852=20



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