• MESO: Mesoscale Discussion 0530

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Apr 23 21:52:55 2025
    ACUS11 KWNS 232152
    SWOMCD
    SPC MCD 232152=20
    TXZ000-OKZ000-NMZ000-232345-

    Mesoscale Discussion 0530
    NWS Storm Prediction Center Norman OK
    0452 PM CDT Wed Apr 23 2025

    Areas affected...TX/OK Panhandles...TX South Plains/Permian
    Basin...extreme eastern NM

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

    Valid 232152Z - 232345Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Widely scattered strong to severe storms are possible into
    this evening. Watch issuance is possible.

    DISCUSSION...Storm initiation appears to be underway as of 2130 UTC
    across the northern TX into the OK Panhandle, with increasing
    cumulus noted farther south into the western TX Panhandle and far
    eastern NM. Strong heating beneath steep midlevel lapse rates has
    resulted in the development of moderate buoyancy, with MLCAPE
    generally in the 1500-2500 J/kg range per modified soundings and
    recent objective mesoanalyses. While large-scale ascent is generally
    modest, continued heating within the uncapped environment will
    support isolated to widely scattered storm development from late
    this afternoon into the evening.=20

    Midlevel flow is not particularly strong, but some veering of flow
    with height is supporting 25-35 kt of effective shear, sufficient
    for development of organized multicells and perhaps a couple of
    supercells. Steep midlevel lapse rates and rather strong upper-level
    flow will result in hail potential with any sustained storms across
    the region. Strong to severe outflow gusts will also be possible
    within the steep lapse-rate environment. Some increase in low-level
    shear/SRH is expected this evening across the TX/OK Panhandles,
    which could eventually support a conditional tornado threat if any
    supercells can persist across that area.=20

    Watch issuance is possible if observational trends support
    development of multiple sustained severe storms into this evening.

    ..Dean/Guyer.. 04/23/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5GE_tPjBS52J7vZ121o05-uSxiWaaqHnVWwiv1Ovxmdd9bmQ4BsDIgJ1vGq55aUJWUb-0pF_G= rbVcS7oxn4fiLpuNvg$ for graphic product...

    ATTN...WFO...SJT...LUB...AMA...MAF...ABQ...

    LAT...LON 32780297 34100317 34820322 35190317 35650306 36250272
    36740224 36890151 36950088 36940061 35820040 33890032
    32840053 32650081 32300165 32160247 32240273 32780297=20

    MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
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