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  • MESO: Mesoscale Discussion 0922

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, June 28, 2018 20:34:43
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    ACUS11 KWNS 282034
    SWOMCD
    SPC MCD 282034
    INZ000-KYZ000-ILZ000-MOZ000-282230-

    Mesoscale Discussion 0922
    NWS Storm Prediction Center Norman OK
    0334 PM CDT Thu Jun 28 2018

    Areas affected...Eastern Missouri...Illinois

    Concerning...Severe Thunderstorm Watch 232...

    Valid 282034Z - 282230Z

    The severe weather threat for Severe Thunderstorm Watch 232
    continues.

    SUMMARY...A wind damage threat may continue for a few more hours
    across eastern Missouri into western and central Illinois. A new
    weather watch or a local extension will be possible later this
    afternoon.

    DISCUSSION...The latest radar imagery shows a linear MCS across far
    western Illinois extending southwestward into northeast Missouri.
    The line of storms is located along a gradient of moderate
    instability where MLCAPE values are estimated in the 2000 to 4000
    J/kg range by the RAP. The line of storms appears to be associated
    with a minor perturbation moving southeastward across the mid
    Mississippi Valley evident on water vapor imagery. Although the
    linear MCS does not look as organized over the last hour, a threat
    for isolated wind damage and hail will continue due to the favorable thermodynamic environment. If the linear MCS can hold together
    across central and southern Illinois, then a new weather watch can
    not be ruled out later this afternoon.

    ..Broyles/Hart.. 06/28/2018

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

    ATTN...WFO...IND...PAH...ILX...LSX...DVN...

    LAT...LON 39248806 40118848 40858949 40799046 40119145 39439191
    38879167 38489079 37998988 37428867 37628811 37868763
    38228760 38658780 39248806



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