• MESO: Mesoscale Discussion 2208

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Nov 4 21:38:51 2024
    ACUS11 KWNS 042138
    SWOMCD
    SPC MCD 042138=20
    TXZ000-OKZ000-042345-

    Mesoscale Discussion 2208
    NWS Storm Prediction Center Norman OK
    0338 PM CST Mon Nov 04 2024

    Areas affected...Central to northeast Texas

    Concerning...Tornado Watch 704...

    Valid 042138Z - 042345Z

    The severe weather threat for Tornado Watch 704 continues.

    SUMMARY...The severe threat continues across northern TX/WW 704, but
    becomes less clear further south into central TX where convection
    along a cold front has been slow to develop.

    DISCUSSION...Over the past 1-2 hours, supercells across the DFW area
    have struggled to become well organized despite a favorable
    thermodynamic and kinematic environment. Some uptick in intensity
    has been noted over the past 20-30 minutes as these cells begin to
    interact with the approaching cold front/outflow boundary. A large
    hail threat will likely persist for the next hour before these
    storms fully transition into a somewhat more consolidated and
    balanced line. After this point, the potential for damaging/severe
    winds should increase downstream into northeast TX with an attendant
    threat for embedded circulations given the favorable low-level wind
    profile (0-1 km SRH remains at around 150 m2/s2).=20

    Ahead of this line, shallower convection developing along a weak
    confluence axis continues to percolate across northeastern TX. This
    activity resides on the western periphery of a somewhat more buoyant
    air mass (SBCAPE upwards of 2500 J/kg), but weak forcing for ascent
    casts some uncertainty onto how intense this convection will become.
    These storms reside well within the best low-level kinematic fields
    based on recent upper-air analyses. If a robust supercell can be
    established, a more prominent hail/tornado threat may emerge.=20

    Further south along the front into central TX, convective
    development has been meager with only a few attempts at deeper
    convection noted in satellite imagery. The downstream environment
    ahead of the front remains favorable for robust convection, which
    would likely develop quickly into an organized line, and latest CAM
    solutions continue to suggest that development across central TX is
    likely in the coming hours. Trends are being monitored, and watch
    issuance may be needed once robust initiation along the front
    becomes apparent.

    ..Moore.. 11/04/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7u8Wanaz5IPVlTHSkA7O0M3bklziWYcYP3S8pcWYPrN7M4BTGDvJQVVSci-BRrm80nnyIw3Tn= T-uH2bGdfmhVI8CvWE$ for graphic product...

    ATTN...WFO...SHV...TSA...HGX...FWD...OUN...EWX...SJT...

    LAT...LON 31239554 31049583 30939610 30499759 30439812 30509841
    30779858 30949852 31129839 31399805 31789763 32079736
    32459714 33389667 33859576 33879514 33729478 33509453
    33199451 31549533 31239554=20


    =3D =3D =3D
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