• MESO: Mesoscale Discussion 0342

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tuesday, March 29, 2022 22:44:41
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    ACUS11 KWNS 292244
    SWOMCD
    SPC MCD 292244=20
    KSZ000-OKZ000-300015-

    Mesoscale Discussion 0342
    NWS Storm Prediction Center Norman OK
    0544 PM CDT Tue Mar 29 2022

    Areas affected...Portions of south and east-central Kansas

    Concerning...Severe Thunderstorm Watch 70...

    Valid 292244Z - 300015Z

    The severe weather threat for Severe Thunderstorm Watch 70
    continues.

    SUMMARY...Thunderstorms will continue across eastern Kansas with a
    damaging wind threat and isolated large hail.

    DISCUSSION...Storm mode has been messy thus far with the storm
    activity across southern Kansas. There have been multiple competing
    updrafts and even embedded left movers. The ICT VWP shows a mostly
    straight hodograph above 2km and considering the high LCLs, this is
    the portion of the wind field acting on the convection. In addition,
    mean flow in this layer is parallel to the dryline. Therefore,
    continued linear growth is expected. ICT WSR-88D data shows a cold
    pool has already developed out of this convection northwest of
    Wichita. There is still some inhibition ahead of this convection
    which may explain the somewhat muted intensity of the storms thus
    far. However, since a cold pool has already developed, expect this
    convection to persist into the evening when further strengthening
    may occur as cooler air moves in aloft and the low-level jet
    strengthens.

    ..Bentley/Guyer.. 03/29/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!sL9eD8SV6cgImenCMgyWUN5D5WsxUWPmSNqr4M3Cg_dCGlXAiXJFi__cQ1sueYnhciQAzlPp$=
    for graphic product...

    ATTN...WFO...TOP...ICT...OUN...DDC...

    LAT...LON 38979748 39229717 39189599 38709586 37299611 37029733
    36989809 37059842 37329857 38019824 38979748=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Saturday, March 25, 2023 18:07:41
    ACUS11 KWNS 251807
    SWOMCD
    SPC MCD 251807=20
    PAZ000-NYZ000-WVZ000-OHZ000-251900-

    Mesoscale Discussion 0342
    NWS Storm Prediction Center Norman OK
    0107 PM CDT Sat Mar 25 2023

    Areas affected...eastern Ohio into far western Pennsylvania

    Concerning...Severe Thunderstorm Watch 80...

    Valid 251807Z - 251900Z

    The severe weather threat for Severe Thunderstorm Watch 80
    continues.

    SUMMARY...The severe threat continues across Severe Thunderstorm
    Watch 080. Damaging gusts will be the main threat with the stronger
    storms.

    DISCUSSION...Low-topped thunderstorms have been pulsing in intensity
    over the last hour or so, with at least a few near-severe gusts
    observed. These storms continue to progress rapidly eastward amid
    very strong low/deep-layer speed shear, as shown by regional VADs.
    Furthermore, ample diurnal heating supports a well-mixed boundary
    layer, depicted by 8+ C/km 0-3 km lapse rates (17Z mesoanalysis). As
    such, at least isolated strong wind gusts should continue through
    the afternoon hours, before storms weaken as they progress over a
    cooler, stable boundary layer in central PA.

    ..Squitieri.. 03/25/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5uC4CiXsABStLtlqwcfB-xJn-cGw72M2jlFXsHnW1FCoKACTNDse5zBSMd7iAXy6aYgMYpKPE= 37Yst04ZuXbSNd6MjM$ for graphic product...

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

    LAT...LON 40868227 41508159 41958047 42037989 41957926 41597889
    40907889 40347917 39917967 39748036 39778117 39848166
    40248200 40868227=20


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