• MESO: Mesoscale Discussion 0555

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Apr 28 03:51:44 2024
    ACUS11 KWNS 280351
    SWOMCD
    SPC MCD 280351=20
    ILZ000-MOZ000-280545-

    Mesoscale Discussion 0555
    NWS Storm Prediction Center Norman OK
    1051 PM CDT Sat Apr 27 2024

    Areas affected...Eastern Oklahoma

    Concerning...Tornado Watch 152...

    Valid 280351Z - 280545Z

    The severe weather threat for Tornado Watch 152 continues.

    SUMMARY...Tornado potential is greatest across eastern Oklahoma.

    DISCUSSION...Influence of mid-level speed max appears to be
    affecting convection over central/southern Oklahoma. Low-level SRH
    has increased markedly across eastern OK this evening as LLJ is
    focused into this region of the southern Plains. 0-1 SRH values are
    currently around 600 m2/s2 at INX, and weak inhibition that was
    observed on 00z OUN sounding is now negligible.

    Late-afternoon convection that evolved over northwest TX/southwest
    OK has grown upscale and progressed downstream. Leading edge of
    well-defined MCS now arcs from near Payne-Okfuskee-Garvin County.
    While embedded circulations are noted along this line, especially
    the northern portions, of more concern are the discrete supercells
    that have developed ahead of the MCS. Several notable, long-lived
    supercells have evolved from south-central OK into Hughes County.
    Tornado potential appears significant with these discrete pre-MCS
    updrafts. As these updrafts are overtaken by the MCS a more complex
    MCS will ultimately evolve within the larger warm advection
    corridor. A few strong tornadoes are likely with this activity.

    ..Darrow.. 04/28/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7ZWfOzoApQMubNCALk35vuD9zaGliM31Qs8n1KwO5D2BOLvM4G1SXB8Z7OEN-uvTiJplNyRH5= omIm6DsV12vzB_I8AI$ for graphic product...

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

    LAT...LON 38359300 41109013 40568868 38579056 37629192 38359300=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)
  • From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Apr 28 04:34:14 2024
    ACUS11 KWNS 280434
    SWOMCD
    SPC MCD 280433 COR
    OKZ000-280545-

    Mesoscale Discussion 0555
    NWS Storm Prediction Center Norman OK
    1133 PM CDT Sat Apr 27 2024

    Areas affected...Eastern Oklahoma

    Concerning...Tornado Watch 152...

    Valid 280433Z - 280545Z

    CORRECTED FOR AREA OUTLINE

    The severe weather threat for Tornado Watch 152 continues.

    SUMMARY...Tornado potential is greatest across eastern Oklahoma.

    DISCUSSION...Influence of mid-level speed max appears to be
    affecting convection over central/southern Oklahoma. Low-level SRH
    has increased markedly across eastern OK this evening as LLJ is
    focused into this region of the southern Plains. 0-1 SRH values are
    currently around 600 m2/s2 at INX, and weak inhibition that was
    observed on 00z OUN sounding is now negligible.

    Late-afternoon convection that evolved over northwest TX/southwest
    OK has grown upscale and progressed downstream. Leading edge of
    well-defined MCS now arcs from near Payne-Okfuskee-Garvin County.
    While embedded circulations are noted along this line, especially
    the northern portions, of more concern are the discrete supercells
    that have developed ahead of the MCS. Several notable, long-lived
    supercells have evolved from south-central OK into Hughes County.
    Tornado potential appears significant with these discrete pre-MCS
    updrafts. As these updrafts are overtaken by the MCS a more complex
    MCS will ultimately evolve within the larger warm advection
    corridor. A few strong tornadoes are likely with this activity.

    ..Darrow.. 04/28/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5nbu-s7fQCaBSg8KGidS5Ti5Nj7pom-URvHIiOrz5fzpqhwYXTFyTx5ED2ohMK7DZ7QF7Bpu9= bccXwty1Zp9Tsn6jDU$ for graphic product...

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

    LAT...LON 35459666 36339693 36929563 36479472 35669520 34019600
    34149719 35459666=20


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)