• MESO: Mesoscale Discussion 0842

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Saturday, May 23, 2026 20:39:58
    ACUS11 KWNS 232039
    SWOMCD
    SPC MCD 232039=20
    TXZ000-OKZ000-NMZ000-232245-

    Mesoscale Discussion 0842
    NWS Storm Prediction Center Norman OK
    0339 PM CDT Sat May 23 2026

    Areas affected...portions of northeastern new Mexico into the
    Texas/Oklahoma Panhandles.

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

    Valid 232039Z - 232245Z

    Probability of Watch Issuance...40 percent

    SUMMARY...Isolated to widely scattered thunderstorms are expected to
    pose a risk for hail and some damaging winds into this evening. A WW
    is possible.

    DISCUSSION...Across portions of the southern High Plains, afternoon
    satellite and radar imagery showed high-based convection
    strengthening across the southern Raton mesa in northeastern NM and southeastern CO. South of a broad upper trough and modestly enhanced
    westerly flow aloft, weak upslope flow has resulted in modest
    destabilization of the air mass so far this afternoon. Continued
    warming will support around 1000 J/kg of MLCAPE amid steep low and
    mid-level lapse rates (18z AMA sounding). 20-30 kt of deep-layer
    flow on area VADs is supportive of a mixed mode of multicellular and
    transient supercell structures.

    Ongoing storms over NM/CO should continue east/southeastward with
    gradual intensification as they encounter more buoyancy. Additional,
    more isolated, storm development is possible along a subtle sfc
    confluence axis across the central TX Panhandle. CAM guidance and
    observational trends shows these storms intensifying, with an
    associated increase in the severe risk through the remainder of the
    afternoon and into the early evening.

    Isolated large hail is possible initially, especially with any
    longer-lived supercells. Some potential for severe wind gusts is
    also possible given the steep low-level lapse rates. This threat
    could increase further as a gradual clustering is expected during
    the evening hours across southern portions of the TX Panhandle where
    buoyancy is greater. With severe potential expected to increase, a
    WW is possible over the next couple of hours.

    ..Lyons/Guyer.. 05/23/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6JFX7f6YWo5EWu1rGcVkWESxHQA1h-Qybt-a9pSgfk9tDnJhlYbC5MglzFj-9dsV3wfoeVIFO= ercIJ_nu4bS3PDxtDM$ for graphic product...

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

    LAT...LON 33660275 34120314 34790350 35490357 36000356 36380333
    36880256 36700107 35890050 35330019 34250025 33620060
    33360094 33300216 33660275=20

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN


    =3D =3D =3D
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    * Origin: Capitol City Online (1:2320/107)