• MESO: Mesoscale Discussion 0794

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, May 16, 2022 22:24:18
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    ACUS11 KWNS 162224
    SWOMCD
    SPC MCD 162223=20
    PAZ000-NYZ000-OHZ000-162330-

    Mesoscale Discussion 0794
    NWS Storm Prediction Center Norman OK
    0523 PM CDT Mon May 16 2022

    Areas affected...northeast Ohio and northwest Pennsylvania

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

    Valid 162223Z - 162330Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated damaging wind gusts will be possible with the
    storm cluster moving off of Lake Erie.

    DISCUSSION...A fast moving cluster of storms developed earlier today
    across eastern Michigan and is now crossing Lake Erie. The
    environment ahead of these storms is very deeply mixed with at least
    weak buoyancy. Therefore, some stronger mid-level flow (~50 knots at
    3-4 km per CLE VWP) may mix toward the surface with this
    thunderstorm activity. Recently, the Akron, Ohio ASOS gusted to 43
    knots as thunderstorms moved through the region, showing what the
    environment is capable of. The cluster over Lake Michigan is more
    organized and moving faster than the storms to the south. Therefore,
    expect a threat for isolated damaging wind gusts for the next 1 to 2
    hours before the threat wanes as the boundary layer cools later this
    evening.

    ..Bentley/Hart.. 05/16/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!50S7zs7AopsZymqSivyA7RbivTR_EXqUZaoswqSZR90loKJp2wpqAcsn4zkNG8k8qjcB8E_Bl= x7kCgM4UU-hBqmK51w$ for graphic product...

    ATTN...WFO...BUF...CTP...PBZ...CLE...

    LAT...LON 41488173 41858119 42188017 42207973 41967957 41437967
    41028022 40888074 40928132 40958138 41488173=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, May 14, 2023 17:44:20
    ACUS11 KWNS 141744
    SWOMCD
    SPC MCD 141743=20
    ILZ000-MOZ000-142015-

    Mesoscale Discussion 0794
    NWS Storm Prediction Center Norman OK
    1243 PM CDT Sun May 14 2023

    Areas affected...northern into eastern Missouri and southwest
    Illinois

    Concerning...Severe potential...Watch possible=20

    Valid 141743Z - 142015Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Storms are expected to develop over northern Missouri, and
    may pose a damaging wind and marginal hail threat as they progress east/southeastward toward the Mississippi River and into western
    Illinois.

    DISCUSSION...Visible imagery shows towering cumulus and deepening
    convection now over northern MO, near a weak boundary. This boundary
    becomes less defines farther east into IL, but a minor differential
    heating zone does exist.

    While winds aloft are not very strong, heating and ample moisture
    will continue to destabilize the region. Conditions appear favorable
    for a cluster of storms to form near the stronger part of the front
    over northern MO, and hodographs will favor and east/southeastward
    storm motion. Given the favorable time of day with steepening
    low-level lapse rates and precipitable water near 1.50", at least
    isolated severe gust potential appears likely, with marginal hail in
    some of the stronger cores as well.

    ..Jewell/Guyer.. 05/14/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8fjz_Ogr2QEgjQEiqkDa1PTBKRXEDYJVYWixF2c0TJg8NQ5b4yYrtlWZYWrJ55Qm_UDRORKgY= l2XEqKnV9uYCbUWecE$ for graphic product...

    ATTN...WFO...PAH...ILX...LSX...EAX...

    LAT...LON 39199353 39439369 39719362 39979306 40119254 39919093
    38978922 38498902 38218906 37798931 37798967 38399110
    38759201 38949266 39099327 39199353=20


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