• MESO: Mesoscale Discussion 0885

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jun 8 19:47:41 2021
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    ACUS11 KWNS 081947
    SPC MCD 081947=20

    Mesoscale Discussion 0885
    NWS Storm Prediction Center Norman OK
    0247 PM CDT Tue Jun 08 2021

    Areas affected...northeast LA...west-central MS

    Concerning...Severe Thunderstorm Watch 246...

    Valid 081947Z - 082145Z

    The severe weather threat for Severe Thunderstorm Watch 246

    SUMMARY...Isolated strong to locally severe gusts will be capable of
    wind damage as the line segment over northern LA moves to the MS
    River over the next 1-2 hours.

    DISCUSSION...Radar mosaic shows a long-lived linear segment over
    northern LA as of 240 pm moving to the east-northeast at 35 kt. The
    airmass downstream of the line segment has warmed to near 90 deg F
    with low to mid 70s dewpoints. Although the wind profile is
    relatively weak (at or below 20-25 kt from the surface through 7 km
    AGL via the Jackson, MS 88D VAD), an enhanced belt of stronger low
    to mid-level flow will gradually move from northeast LA to
    west-central MS in conjunction with the linear segment and
    associated parent MCV/speed max over northern LA. Time/height
    trends from the Shreveport, LA 88D VAD showed the belt of 50-kt flow
    in the 2-4 km AGL layer between 1145am-115pm. Therefore, it seems
    reasonable this belt of stronger flow will continue east and aid in
    storm organization across the Delta region over the next several
    hours. Isolated strong to severe gusts capable of wind damage is
    the threat with these storms.

    ..Smith.. 06/08/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!oleMHwJbUxpjKJGX-F1Ga4LiS0iByVOEN2sUCwhrs-m0E6k6b0Gzkk6QDAmKdbxExFbT_OwB$=
    for graphic product...


    LAT...LON 31989218 32759190 32979064 32659049 32069069 31989218=20

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