• MESO: Mesoscale Discussion 2153

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Oct 21 01:24:05 2024
    ACUS11 KWNS 210124
    SWOMCD
    SPC MCD 210123=20
    OKZ000-COZ000-TXZ000-NMZ000-210330-

    Mesoscale Discussion 2153
    NWS Storm Prediction Center Norman OK
    0823 PM CDT Sun Oct 20 2024

    Areas affected...Eastern NM

    Concerning...Severe Thunderstorm Watch 691...

    Valid 210123Z - 210330Z

    The severe weather threat for Severe Thunderstorm Watch 691
    continues.

    SUMMARY...An isolated large hail should persist for the next few
    hours across east-central to northeast New Mexico, with a brief
    tornado also possible in east-central New Mexico.

    DISCUSSION...Two primary corridors of thunderstorms are ongoing; one
    east of the Sangre de Cristo Mountains near the Raton Mesa, and the
    other south of the I-40 corridor in east-central NM. The northern
    storms should pose a continued threat of small to marginally severe
    hail of 0.75 to 1.25 inches, based on prior MRMS MESH signatures and
    presence of weak surface-based buoyancy plume. The discrete cells
    farther south have recently consolidated to two storms and these may
    gradually intensify over the next hour or so within a favorable
    supercell wind profile. FDX VWP data confirms an enlarged 0-1 km
    hodograph, beneath by strong southwesterly speed shear above 3 km.
    This could result in a sustained supercell being capable of a brief
    tornado, along with large hail from quarter to golf ball size
    through about 03-04Z. Thereafter, additional storms will probably
    increase in between the two separate regimes as low-level warm
    theta-e advection becomes maximized and a cluster mode dominates,
    while the boundary layer further cools.

    ..Grams.. 10/21/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5e7-uL06uq2CrP0eeIRrAgJh2LtPl2oz1DQSB6OKoAOylEyxMxzInfbQ_SXCMdV1iUVjKSbK9= np1KIIUPelXf4uMYUA$ for graphic product...

    ATTN...WFO...LUB...AMA...PUB...ABQ...

    LAT...LON 37450359 37370295 34890284 34230293 33880371 33830426
    33870470 34250495 35620520 36260486 36990419 37450359=20


    =3D =3D =3D
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