• MESO: Mesoscale Discussion 1041

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Jun 21 02:55:08 2021
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    ACUS11 KWNS 210255
    SWOMCD
    SPC MCD 210254=20
    ILZ000-IAZ000-MOZ000-210400-

    Mesoscale Discussion 1041
    NWS Storm Prediction Center Norman OK
    0954 PM CDT Sun Jun 20 2021

    Areas affected...West-central/northern IL...northeast MO

    Concerning...Severe Thunderstorm Watch 296...

    Valid 210254Z - 210400Z

    The severe weather threat for Severe Thunderstorm Watch 296
    continues.

    SUMMARY...The potential for damaging winds, large hail and a tornado
    or two will continue across the watch area.

    DISCUSSION...Regional radar composite as of 0245z depicts several
    areas of strong/severe thunderstorms across or about to enter WW
    296. Coverage continues to increase as warm advection with an
    intensifying low-level jet focuses ascent across the watch area.=20
    Latest SPC mesoanalysis shows a supportive environment for a
    continued severe risk with strong instability (2000-2500 J/kg) and
    35-40 kts of westerly effective shear. Although individual cells
    will be capable of severe hail, cells merging into clusters/line
    segments will be capable of producing more concentrated areas of
    damaging winds and perhaps a brief tornado.

    ..Bunting.. 06/21/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!s-Yfu2k4XmOaRIP82WYpN5K7wdHXJgTGzGRE4T5G17eiOIL3B6c01GJZyQ8-VdEv_sfPMtKK$=
    for graphic product...

    ATTN...WFO...LOT...ILX...LSX...DVN...

    LAT...LON 39529033 39459092 39349177 39369216 39529223 39929140
    40219091 41089043 41759018 42329010 42438948 42348882
    41508861 39648959 39529033=20



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