• MESO: Mesoscale Discussion 1022

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed May 28 17:21:25 2025
    ACUS11 KWNS 281721
    SWOMCD
    SPC MCD 281720=20
    TXZ000-281915-

    Mesoscale Discussion 1022
    NWS Storm Prediction Center Norman OK
    1220 PM CDT Wed May 28 2025

    Areas affected...parts of central/northwest Texas

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

    Valid 281720Z - 281915Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Isolated to scattered severe storms are possible this
    afternoon and into the evening.

    DISCUSSION...Weak showers/thunderstorms have developed in Brown
    County this morning. However, it appears instability is too weak to
    support stronger convection at this time. As temperatures continue
    to warm into the low 80s this afternoon, stronger instability is
    anticipated which should eventually result in more robust
    development from this activity. Easterly low-level flow combined
    with moderate mid-level flow aloft will result in shear supportive
    of supercells. Slow storm motions (10 to 15 knots) will result in
    slow-moving supercells with a primary large hail threat through the afternoon.=20

    Additional supercell development is also possible near the MCV
    across northwest Texas later this afternoon. Currently SPC
    mesoanalysis indicates a capped environment near the MCV, but as the
    boundary layer continues to warm/destabilize, expect a few
    supercells to develop.=20

    12Z CAM guidance only shows a few storms within this region this
    afternoon. This casts some doubt on watch necessity in an otherwise
    favorable environment. Therefore, trends will be monitored and if
    more than an isolated threat appears likely, a watch will likely be
    necessary. In addition, if more widespread storms develop, some
    threat for upscale growth and an increasing wind threat could
    persist into the evening into parts of central Texas.

    ..Bentley/Guyer.. 05/28/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9OM24PF2JZUsdZF8S8HxG7ycM27Dr_CM46GVXYHcNMhClbvk6JAUvbT-kWSYjcM2M-yaV2aw-= G5Vvzeb_AVPJpIOQvs$ for graphic product...

    ATTN...WFO...FWD...EWX...SJT...LUB...MAF...

    LAT...LON 30409900 30619942 31249999 32260075 33140089 33380016
    33109905 32539814 32329784 30999742 30249839 30409900=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 95 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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