• MESO: Mesoscale Discussion 0198

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, March 06, 2022 00:34:18
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    ACUS11 KWNS 060033
    SWOMCD
    SPC MCD 060033=20
    ILZ000-MOZ000-IAZ000-060200-

    Mesoscale Discussion 0198
    NWS Storm Prediction Center Norman OK
    0633 PM CST Sat Mar 05 2022

    Areas affected...northern Missouri

    Concerning...Tornado Watch 28...29...

    Valid 060033Z - 060200Z

    The severe weather threat for Tornado Watch 28, 29 continues.

    SUMMARY...Severe/isolated tornado potential continues across
    northern Missouri.

    DISCUSSION...Isolated, pre-frontal convective cells have remained
    somewhat subdued over the past hour, in terms of both coverage and
    intensity. However, as the cold front continues moving east of the
    Kansas City metro area, linear convective development/organization
    is ongoing. This line of storms should continue advancing eastward
    over the next few hours, and will likely exit the watch between 02
    and 0230Z per latest extrapolation, with the northern -- and likely
    to be stronger -- portion of the line then entering newly issued
    Tornado Watch 29 over northeastern Missouri. We will continue to
    monitor areas south of these two watches, but current thinking is
    that a more anafrontal/undercut nature will prevail with southward
    extent, which should limit severe potential.

    ..Goss.. 03/06/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qOzr1BE3HubPTOeFrvEEFc2qs0NxcFNGh_Jqpxro-sOqZQijNJUoD2p4I2-RKjJC-KLxRpBR$=
    for graphic product...

    ATTN...WFO...LSX...DVN...SGF...EAX...

    LAT...LON 38579423 39669366 40089321 40589167 40179105 39639109
    38739258 38569325 38579423=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, February 27, 2023 04:17:22
    ACUS11 KWNS 270417
    SWOMCD
    SPC MCD 270417=20
    OKZ000-TXZ000-270545-

    Mesoscale Discussion 0198
    NWS Storm Prediction Center Norman OK
    1017 PM CST Sun Feb 26 2023

    Areas affected...portions of central and eastern OK

    Concerning...Tornado Watch 44...

    Valid 270417Z - 270545Z

    The severe weather threat for Tornado Watch 44 continues.

    SUMMARY...The damaging gust and tornado threat will continue across
    portions of central into eastern OK the next few hours.

    DISCUSSION...Several severe gusts near 60-70 mph have been reported
    over the past hour across central/south-central OK. Additionally, a
    few mesovortex tornadoes have likely occurred with the surging
    bowing segment near the OKC metro vicinity, with several other
    mesovortex circulations noted in radar data across north-central OK.
    Intense low-level shear and strong forcing along the
    eastward-advancing cold front will continue to support damaging wind
    potential. VWP data from KINX also shows an enlarged low-level
    hodograph with backed surface winds somewhat orthogonal to the
    bowing segment tracking toward east-central OK and the segment
    tracking across north-central OK near the KS border. This should
    continue to support mesovortex generation for a couple more hours.

    ..Leitman.. 02/27/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6xoNufC-DjMcrzjSr52YnjwM_fjQvCDJIzCICojJJGG71U-SMhG58vkaWXHFNCQP5Y0fbhuW4= cd0-aeuB5l11FRZqgw$ for graphic product...

    ATTN...WFO...TSA...FWD...OUN...

    LAT...LON 36999714 36969576 36949563 36599521 36279504 35639517
    35059546 34399585 34049632 33949689 33969736 34129743
    34409735 35049704 35659693 36139719 36509753 36849753
    36979749 36999714=20


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, March 07, 2024 19:31:12
    ACUS11 KWNS 071931
    SWOMCD
    SPC MCD 071930=20
    OKZ000-TXZ000-072130-

    Mesoscale Discussion 0198
    NWS Storm Prediction Center Norman OK
    0130 PM CST Thu Mar 07 2024

    Areas affected...Central and western Oklahoma into northwest Texas

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

    Valid 071930Z - 072130Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Thunderstorm development is anticipated in the coming
    hours. These storms will initially pose a large hail threat before transitioning to primarily a severe wind threat during the evening
    hours. Watch issuance is probable.

    DISCUSSION...Surface observations over the past few hours have shown
    gradual moisture return into western OK ahead of a sharpening
    dryline/surface trough. Although this moisture is somewhat meager
    (low to mid 50 dewpoints), steep mid-level lapse rates continue to
    overspread the region amid a west/southwesterly mid-level flow
    regime. While MLCAPE remains very minimal at the moment, continued
    low-level moisture return should result in gradually improving
    buoyancy through the late afternoon and evening hours. Regardless,
    ascent associated with a subtle mid-level perturbation is
    overspreading the TX Panhandle with high-based cumulus development
    noted behind the dryline. This ascent is forecast to reach the warm
    sector across western OK/northwest TX in the coming hours, and
    recent HRRR/WOFS runs suggest initiation is likely during the 21-23
    UTC period. Although convection may initially be anemic owing to the
    modest buoyancy, the severe threat should steadily increase heading
    into the evening hours with initially discrete cells posing a large
    hail risk across northwest TX/western OK before upscale growth
    favors an increasing wind threat further east into central OK. Watch
    issuance is probable in the coming hours as sufficient buoyancy
    becomes established to support severe convection.

    ..Moore/Hart.. 03/07/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7MvCKiq0g6O3pVdh1skD1bFIhUUTCs5bcIAGYVTiY6MSk0BzRxhu-kiHGDNWwv-BaDv_I0_pI= rFtG_yxDWH-v-Y0hd8$ for graphic product...

    ATTN...WFO...OUN...LUB...

    LAT...LON 34180013 34789986 35689964 36419931 36759878 36869847
    36809814 36609783 36379758 36099737 35719730 35379741
    35009772 34559806 33909871 33629900 33499931 33579970
    33619988 33780017 34180013=20


    =3D =3D =3D
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