• MESO: Mesoscale Discussion 2182

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Nov 2 18:24:36 2024
    ACUS11 KWNS 021824
    SWOMCD
    SPC MCD 021824=20
    TXZ000-NMZ000-022000-

    Mesoscale Discussion 2182
    NWS Storm Prediction Center Norman OK
    0124 PM CDT Sat Nov 02 2024

    Areas affected...portions of west Texas into extreme southeastern
    New Mexico

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

    Valid 021824Z - 022000Z

    Probability of Watch Issuance...60 percent

    SUMMARY...The severe threat should gradually increase through the
    afternoon, with all severe hazards possible. A WW issuance may be
    needed in the next couple of hours pending robust storm
    intensification.

    DISCUSSION...Convection is gradually deepening across the Permian
    Basin amid a destabilizing boundary layer, with NLDN data depicting
    lightning already occurring with the deeper updrafts. 17Z
    mesoanalysis shows some remaining MLCINH in place. However, surface temperatures are approaching 80 F in spots, amid 60 F dewpoints,
    yielding 1500+ J/kg MLCAPE. Vertical wind profiles gradually veer
    from southeasterly at the surface, to southwesterly at 500 mb, with considerable strengthening with height noted in forecast soundings.
    Hodographs are relatively straight and elongated in the near-term,
    supporting 25-35 kts of effective bulk shear. However, strengthening
    low-level flow later this afternoon and evening will contribute to
    50+ kts of effective bulk shear and larger, curved low-level
    hodographs.=20

    As such, multicells and transient supercells should develop over the
    next couple of hours, though more sustained supercells may
    materialize by mid to late afternoon. The more intense, long-lived
    storms may produce severe gusts and large hail (with some stones
    potentially exceeding 2 inches in diameter). Low-level shear may
    also become strong enough to support the risk for a couple of
    tornadoes later this afternoon into early evening, when hodographs
    enlarge.

    ..Squitieri/Smith.. 11/02/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5J_0Fg25XXijfA7HdH54-_j06o08myT2ZGThIBWM6aav_S0yDjovQEEXq8Vs7_RXx-j-y4s6N= uW_GTyR5a4M7eVkdC8$ for graphic product...

    ATTN...WFO...SJT...MAF...

    LAT...LON 31730415 32240395 32500357 32640296 32770210 32900140
    32810099 32150078 31550141 31290224 31240294 31240347
    31280390 31730415=20


    =3D =3D =3D
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