• MESO: Mesoscale Discussion 0121

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Mar 2 19:14:52 2025
    ACUS11 KWNS 021914
    SWOMCD
    SPC MCD 021914=20
    TXZ000-OKZ000-022145-

    Mesoscale Discussion 0121
    NWS Storm Prediction Center Norman OK
    0114 PM CST Sun Mar 02 2025

    Areas affected...Parts of the eastern TX Panhandle into western OK
    and western north TX

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

    Valid 021914Z - 022145Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Strong to severe storms may develop this afternoon, with a
    threat of hail, localized severe gusts, and possibly a tornado or
    two.

    DISCUSSION...Diurnal heating is underway across parts of the TX
    South Plains and southeast TX Panhandle, in the wake of elevated
    convection that is moving into southwest OK and western north TX.
    Differential heating is sharpening a low-level baroclinic zone
    extending east-southeast of a deep-layer cyclone moving out of
    east-central New Mexico. Convective initiation is underway near the
    dryline east/southeast of Lubbock, and additional thunderstorm
    development is expected this afternoon as strong ascent overspreads
    the region.=20

    Low-level moisture remains rather limited, but mid/upper 40s F
    dewpoints (locally higher) will be sufficient to support MLCAPE
    increasing to near 500 J/kg with continued heating and cold
    temperatures aloft. Deep-layer shear is more than sufficient for
    organized convection, with the relatively limited buoyancy providing
    the primary uncertainty regarding the magnitude of the severe threat
    this afternoon. However, given the strong forcing, an arc of
    convection with one or more small embedded supercells may develop
    with time this afternoon and move northeastward, posing a risk of
    hail and localized strong to severe gusts.=20

    Some threat for a tornado may also evolve with time, especially with
    any supercells in the vicinity of the warm-frontal zone, where
    locally higher dewpoints (in the low 50s F) and a relatively
    favorable overlap of low-level instability and vorticity will
    reside. While the magnitude of the threat remains uncertain, watch
    issuance is possible if development of multiple severe storms
    appears imminent.

    ..Dean/Gleason.. 03/02/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7Seo55XpUI57o3HIoH4J2wnrGWeahNciCgomfC8x6pFeoW4Ydk-RpzpO0Df8h27mXnSv8KWyU= EFItPKC63AAsjscXhY$ for graphic product...

    ATTN...WFO...OUN...SJT...LUB...AMA...

    LAT...LON 32870047 33140052 33540062 33930086 34400142 34460141
    35030124 35160074 35159978 34799910 33649894 33299957
    33129995 32870047=20


    =3D =3D =3D
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