• MESO: Mesoscale Discussion 1678

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, December 01, 2018 10:25:34
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    ACUS11 KWNS 010925
    SWOMCD
    SPC MCD 010925
    TNZ000-MSZ000-MOZ000-ARZ000-011130-

    Mesoscale Discussion 1678
    NWS Storm Prediction Center Norman OK
    0325 AM CST Sat Dec 01 2018

    Areas affected...Eastern Arkansas...Northwest Mississippi...Western
    Tennessee

    Concerning...Tornado Watch 431...

    Valid 010925Z - 011130Z

    The severe weather threat for Tornado Watch 431 continues.

    SUMMARY...A wind-damage threat will be possible over the hour or two
    in eastern Arkansas, far western Tennessee and far northwestern
    Mississippi. The threat should become more isolated with time and a
    weather watch will not be needed to the east of WW 431.

    DISCUSSION...The latest radar imagery shows a weakening line of
    thunderstorms across eastern Arkansas. Strong deep-layer shear along
    with a band of large-scale ascent will continue to support an
    isolated severe threat for another hour or two. However, the line
    should continue to weaken as it moves into the vicinity of the
    Mississippi River where instability is very weak.

    ..Broyles/Edwards.. 12/01/2018

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

    ATTN...WFO...PAH...MEG...JAN...LZK...SHV...

    LAT...LON 35268935 35878917 36388934 36518981 36539043 36119102
    34119225 33549245 33129242 33019201 33079116 33309041
    33928998 35268935



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