• MESO: Mesoscale Discussion 0885

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Thu May 28 22:51:34 2026
    ACUS11 KWNS 282251
    SWOMCD
    SPC MCD 282250=20
    TXZ000-290015-

    Mesoscale Discussion 0885
    NWS Storm Prediction Center Norman OK
    0550 PM CDT Thu May 28 2026

    Areas affected...portions of central and north-central Texas

    Concerning...Severe potential...Watch unlikely=20

    Valid 282250Z - 290015Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated large hail will be possible with the strongest
    storms in a cluster of storms developing across portions of central
    and north Texas. A watch is currently not expected, but the area
    will be monitored.

    DISCUSSION...A cluster of multicell thunderstorms is ongoing across
    portions of southern North Texas and northern portions of central
    Texas. This region is downstream of the western North American
    long-wave trough and upstream of the central US short-wave trough.
    This places the area just east of the rising heights noted across
    the southern Rockies.=20

    The overall large scale environment is very unstable with MUCAPE in
    excess of 2500 J/kg and locally greater than 3000 J/kg. Although,
    deep layer shear is generally less than 30 knots, but pockets of
    25-30 knots will support at least some organization to the strongest
    of the multicell cores. Additionally, this region is downstream of
    an upper-level subtropical jet on the southwest side of the large
    western US trough, which is at minimum resulting in diffluent
    upper-level flow and may provide some large-scale ascent.

    Individual cells within this larger cluster have produced isolated
    large hail around 1-1.5". The current degree of instability will
    continue to support this threat with the strongest storms.=20

    Although overall organization of the entire cluster is currently
    somewhat limited, the area will be monitored for signs of individual
    cell outflows merging together and functioning as a single,
    collective outflow. Should this occur, the potential for some
    damaging wind may develop as the overall cluster sags
    south/southeast this evening.

    Generally speaking, the overall severe potential should remain
    relatively limited in space and time. As such, a watch is currently
    not anticipated, but conditions will be monitored.

    ..Marsh/Guyer.. 05/28/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!4cGRJvZH9hw1_hLte9A3DbKt7JOPB8zUPnXeIGvFcEQiZnCIDzCEMo8MkwvmO6pVf1CQrvp6E= OYsQGoY75L5H8w3l9U$ for graphic product...

    ATTN...WFO...FWD...SJT...LUB...

    LAT...LON 32440029 33169987 33409802 33129657 32299629 31769635
    31409711 31369853 31839984 32440029=20

    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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