• MESO: Mesoscale Discussion 2176

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Oct 25 05:56:57 2025
    ACUS11 KWNS 250556
    SWOMCD
    SPC MCD 250556=20
    LAZ000-TXZ000-250730-

    Mesoscale Discussion 2176
    NWS Storm Prediction Center Norman OK
    1256 AM CDT Sat Oct 25 2025

    Areas affected...Parts of Southeast Texas

    Concerning...Severe potential...Watch likely=20

    Valid 250556Z - 250730Z

    Probability of Watch Issuance...80 percent

    SUMMARY...The severe risk will continue spreading east-southeastward
    to the Texas Coast through the early morning hours. Damaging winds
    gusts are the main concern, though a brief/embedded tornado cannot
    be ruled out.

    DISCUSSION...The latest radar data from KEWX shows an MCS tracking east-southeastward at around 40 kt across parts of south-central TX.
    While the leading-line updrafts have decreased in intensity over the
    last hour or so, the well-established cold pool and moist
    pre-convective air mass continues to support embedded damaging wind
    gusts -- especially with any embedded mesovortex structures (i.e., north/south-oriented portions of the line) in the near term.=20

    With time, the MCS will continue tracking east-southeastward to the
    TX Coast through the early morning hours. Around 40 kt of
    line-orthogonal effective shear and a moist/moderately unstable
    downstream air mass will continue to support a risk of damaging wind
    gusts and perhaps a brief/embedded tornado risk -- aided by a
    modest/gradually strengthening low-level jet and related low-level
    hodograph curvature. A watch will likely be issued within the hour
    for parts of the area.

    ..Weinman/Smith.. 10/25/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_maBnV-OIT-sB3kJX9FTJ6QOcxWEYta2mfutBMVeyYiWaTnKgeLzo0YlpqsSZwq4TQxt826-D= DFRSuRwSZ2fRt8J4So$ for graphic product...

    ATTN...WFO...LCH...HGX...CRP...EWX...

    LAT...LON 29359768 29879737 30559618 30809487 30649392 30279375
    29749378 28649542 28439625 28609691 28889744 29359768=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


    =3D =3D =3D
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