• MESO: Mesoscale Discussion 0206

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sunday, March 06, 2022 10:19:09
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    ACUS11 KWNS 061018
    SWOMCD
    SPC MCD 061018=20
    OHZ000-INZ000-061115-

    Mesoscale Discussion 0206
    NWS Storm Prediction Center Norman OK
    0418 AM CST Sun Mar 06 2022

    Areas affected...West-Central/Central OH

    Concerning...Severe Thunderstorm Watch 32...

    Valid 061018Z - 061115Z

    The severe weather threat for Severe Thunderstorm Watch 32
    continues.

    SUMMARY...A few damaging wind gust remain possible across
    west-central and central OH.

    DISCUSSION...Overall intensity of the convective line moving
    eastward across northwest/west-central OH has decreased over the
    past half hour, as evidenced by less lightning and reflectivity
    structure. Even so, a few damaging wind gusts still remain possible
    when downward momentum transfer brings the very strong low to
    mid-level flow to the surface. Most probable location for a strong
    gust or two appears to be over far west-central OH (Darke and Miami
    County vicinity) where the line still has a bit more intensity.=20

    The diminishing trend is forecast to continue over the next hour as
    the line continues eastward into a less favorable thermodynamic
    environment.

    ..Mosier.. 03/06/2022

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!q2g7vGMf0r-qm2BlJv3XJOpdxjqv61OSgyNvjprty1-hWIt9bsZ7hDETbeVKaa_TLR2HCXGI$=
    for graphic product...

    ATTN...WFO...CLE...ILN...IND...

    LAT...LON 40958328 41098299 40948267 40638274 40328311 40078355
    39898414 39788502 39928517 40118504 40378446 40518405
    40718361 40958328=20



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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Monday, February 27, 2023 18:00:15
    ACUS11 KWNS 271800
    SWOMCD
    SPC MCD 271759=20
    OHZ000-KYZ000-INZ000-271930-

    Mesoscale Discussion 0206
    NWS Storm Prediction Center Norman OK
    1159 AM CST Mon Feb 27 2023

    Areas affected...Portions of southwestern into central Ohio and far north-central Kentucky

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

    Valid 271759Z - 271930Z

    Probability of Watch Issuance...60 percent

    SUMMARY...An increase in tornado and damaging wind potential is
    possible for parts of southwestern into central Ohio. A watch will
    be considered this afternoon for parts of this region.

    DISCUSSION...Low-topped, cellular convection continues across parts
    of Indiana this afternoon. Storms in central/northern Indiana, where
    surface winds remain backed, have shown signs of rotation. as these
    storms continue to the east into Ohio, some increase in tornado and
    damaging wind threat may materialize. WSR-88D and TDWR VAD profiles
    in Ohio show enlarged low-level hodographs with very strong winds in
    the lowest 2-3 km. The primary question this afternoon will be the
    degree of surface-based destabilization that can occur into Ohio.
    Cloud cover has been maintained across the state. However, some
    clearing has occurred in southwestern Ohio where temperatures have
    risen into the mid 50s F. Based on current observations and forecast
    soundings, mid 50s F to near 60 F temperatures would be sufficient
    for surface-based convection. Given the potential, a watch will need
    to be considered this afternoon.

    ..Wendt/Gleason.. 02/27/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-Y96d0-JJZZW-eOYiG9S4Kcpg-2bMAaJhZcoQnmSL4-9HFrurKN9CZzd_jDCEHGKKXONYRQRT= b8sOU7MTjMl4wpbmcU$ for graphic product...

    ATTN...WFO...ILN...IWX...IND...

    LAT...LON 38578332 38568378 38748484 39268527 39538531 40518507
    40558468 40218338 39538304 38978311 38578332=20


    =3D =3D =3D
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  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Friday, March 08, 2024 21:13:21
    ACUS11 KWNS 082113
    SWOMCD
    SPC MCD 082112=20
    TXZ000-082315-

    Mesoscale Discussion 0206
    NWS Storm Prediction Center Norman OK
    0312 PM CST Fri Mar 08 2024

    Areas affected...Parts of north TX

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

    Valid 082112Z - 082315Z

    Probability of Watch Issuance...5 percent

    SUMMARY...A couple strong storms are possible through late
    afternoon, with an isolated hail threat.

    DISCUSSION...A thunderstorm has recently developed near the
    southwest Metroplex, with building cumulus noted along a cold front
    that is moving southeastward across the region. Despite rather
    modest low-level moisture, diurnal heating and relatively cool
    midlevel temperatures are supporting MLCAPE of around 500 J/kg
    immediately ahead of the front. Rather strong flow above 3 km AGL is
    resulting in effective shear of 40+ kt, and a couple more organized
    storms (including potential for a transient/marginal supercell) may
    evolve out of developing convection. Weak buoyancy will tend to
    limit the overall hail risk, but isolated instances of hail between
    0.75-1.5 inches in diameter cannot be ruled out through late
    afternoon. Relatively steep low-level lapse rates could support
    outflow gusts of 50-60 mph if any stronger storms can be sustained.=20

    With the threat expected to remain rather limited in magnitude and
    areal extent, watch issuance is unlikely.

    ..Dean/Smith.. 03/08/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4p-oN8KlMUp89XkryQwmiUzISlkii3nrSvShwHCUdfVJTyLhI0NmYoxcT5GoJGKVm506Q6ED0= S9OBmGUyuzlJFuG05c$ for graphic product...

    ATTN...WFO...FWD...

    LAT...LON 32139754 32649709 32819656 32819624 32399614 31969620
    31709627 31369644 31249681 31469747 31789755 32139754=20


    =3D =3D =3D
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