• MESO: Mesoscale Discussion 0237

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, March 10, 2022 22:37:48
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    ACUS11 KWNS 102237
    SWOMCD
    SPC MCD 102237=20
    FLZ000-110030-

    Mesoscale Discussion 0237
    NWS Storm Prediction Center Norman OK
    0437 PM CST Thu Mar 10 2022

    Areas affected...portions of central Florida

    Concerning...Severe Thunderstorm Watch 41...

    Valid 102237Z - 110030Z

    The severe weather threat for Severe Thunderstorm Watch 41
    continues.

    SUMMARY...Severe threat has diminished across WW 41, and should
    continue to do so into this evening. It appears that watch
    cancellation can be considered, prior to its scheduled 11/02Z
    expiration.

    DISCUSSION...Latest radar loop shows scattered thunderstorms ongoing
    across central and portions of southern Florida, with a few of the
    storms strong in character. The most intense convection at this
    time is off the eastern coast, moving eastward/offshore. Meanwhile,
    the inland portion of this convective cluster appears much weaker,
    and is being undercut by convective outflow moving steadily
    southward.

    Meanwhile, a second cluster of convection that included a few more
    vigorous updrafts while over the eastern Gulf has weakened as storms
    have moved onshore near and south of the Tampa Bay area.

    Overall, risk for severe weather has decreased, and should continue
    to do so over the next few hours. Available CAPE has been steadily
    decreasing per RUC-based objective analysis, in tandem with the
    beginnings of diurnal boundary-layer cooling that is currently
    observed. In addition, flow aloft -- already veered and not
    particularly strong, resulting in only modest deep-layer shear --
    has shown a weakening trend with time per area WSR-88D VWPs,
    consistent with model guidance.

    Given this evolution of the environment, severe weather risk should
    remain low, and gradually decrease with time. While potential for a
    strong wind gust will continue for another hour or two, it appears
    that early cancellation of the watch may be warranted.

    ..Goss.. 03/10/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qfMthQorgNCn6Y7cJqM4fVri94BZtwxOua1fZdVrOApJrA_PiFqP7VT5t_7PvImj_pzvg2RZ$=
    for graphic product...

    ATTN...WFO...MFL...MLB...TBW...

    LAT...LON 27418277 27958217 28188127 28558050 28248011 27598027
    27188075 27108176 26838274 27418277=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Friday, March 03, 2023 01:13:59
    ACUS11 KWNS 030113
    SWOMCD
    SPC MCD 030113=20
    ARZ000-TXZ000-OKZ000-030245-

    Mesoscale Discussion 0237
    NWS Storm Prediction Center Norman OK
    0713 PM CST Thu Mar 02 2023

    Areas affected...southeastern Oklahoma southwestward into central
    Texas

    Concerning...Tornado Watch 55...

    Valid 030113Z - 030245Z

    The severe weather threat for Tornado Watch 55 continues.

    SUMMARY...Risk for locally substantial damaging wind gusts and a few
    tornadoes will continue across the watch area.

    DISCUSSION...Latest radar loop shows a well-organized line of
    strong/severe storms extending from southeastern Oklahoma
    south-southwestward across the Texas Hill County. With a very
    strong upper-level system centered near the southeastern New
    Mexico/Texas border, intense downstream flow aloft has contributed
    to numerous damaging wind gusts across northern and central Texas
    over the past hour or so -- including several measured gusts over 70
    mph. As the line of storms continues moving eastward at around 40
    kt through northern and central Texas, potential for
    local/substantial wind gusts will continue. In addition, risk for
    occasional tornadoes within the intense convective band will also
    continue -- which would heighten local risk for damage with these
    storms.

    ..Goss.. 03/03/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5-ceGTpHDvBtF8xsbSgiuac7j1XaodXIhVWwYTKeTFuOdWwxmPnFCJj6vS5-aOCeY39ek6Qsi= 5NAzNgWX5EonYZEz1w$ for graphic product...

    ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

    LAT...LON 31259780 32179749 34199618 34859440 33819451 33059471
    31949570 31139779 31259780=20


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thursday, March 14, 2024 20:51:20
    ACUS11 KWNS 142051
    SWOMCD
    SPC MCD 142050=20
    MOZ000-ARZ000-TXZ000-OKZ000-142215-

    Mesoscale Discussion 0237
    NWS Storm Prediction Center Norman OK
    0350 PM CDT Thu Mar 14 2024

    Areas affected...Portions of far northeast TX into eastern
    OK...AR...and southern MO

    Concerning...Tornado Watch 42...43...

    Valid 142050Z - 142215Z

    The severe weather threat for Tornado Watch 42, 43 continues.

    SUMMARY...The damaging wind threat may be increasing across parts of
    northern Arkansas and southern Missouri. A large hail and tornado
    threat continues with any discrete thunderstorms. Depending on
    convective trends, a new/downstream watch may eventually be needed
    for parts of western Arkansas and vicinity.

    DISCUSSION...Convection has generally grown upscale into multiple
    bowing clusters across parts of east-central OK, northwestern AR,
    and southern MO. Severe/damaging winds up to 50-70 mph should become
    an increasing concern with this mainly linear convection. Still,
    some threat for large hail and a couple tornadoes should persist
    with any supercells that can remain discrete, or embedded within the
    clusters, given modest but sufficient low-level shear and strong
    deep-layer shear. Some attempts at robust convective development
    have recently been noted across southeastern OK, with associated
    threat for large to very large hail. Depending on convective trends,
    additional watch issuance may be needed for parts of
    western/southern AR, extreme southeastern OK, and vicinity over the
    next couple of hours.

    ..Gleason/Goss.. 03/14/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_ynL4K3NCRkrghUIeMRUJGCBUAl5lPCVb_Sqc5PdIS1bX_C4S_hoDAhHx2cCmL9lwx7GCTl3Q= F5ZM8polDFJxADTZTQ$ for graphic product...

    ATTN...WFO...LZK...SGF...SHV...TSA...FWD...OUN...

    LAT...LON 33679631 34339699 35119606 36209412 36729393 37479378
    37619292 37439181 37069131 36249153 34739248 33889334
    33459402 33509506 33679631=20


    =3D =3D =3D
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