• MESO: Mesoscale Discussion 0694

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sunday, May 10, 2026 18:25:10
    ACUS11 KWNS 101825
    SWOMCD
    SPC MCD 101824=20
    LAZ000-ARZ000-TXZ000-102000-

    Mesoscale Discussion 0694
    NWS Storm Prediction Center Norman OK
    0124 PM CDT Sun May 10 2026

    Areas affected...portions of eastern Texas

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

    Valid 101824Z - 102000Z

    Probability of Watch Issuance...40 percent

    SUMMARY...An ongoing thunderstorm cluster may persist southeastward
    over the next couple of hours, with the potential for eventual
    intensification. A Severe Thunderstorm Watch may eventually be
    needed.

    DISCUSSION...A persistent convective cluster is ongoing across
    portions of northeastern Texas, with latest high-res guidance
    continuing to struggle to capture this activity. Latest
    surface/mesoanalysis suggests that the environment immediately
    downstream of this cluster is located within the remnant outflow of
    overnight convection and possesses some residual inhibition (evident
    on 18z SHV observed sounding). Thus, one plausible scenario is a
    gradual weakening/dissipation of this cluster, with a weakening
    trend and surging outflow noted along the southern flank via recent
    radar imagery.

    A small convective segment with a stronger core is noted along the
    eastern edge of this cluster, however. This segment is in closer
    proximity to the leading edge of the surface cold pool and more
    favorably aligned with westerly deep-layer flow/shear. With
    continued diurnal heating modifying the downstream air mass, there
    is some potential for this cluster to persist and perhaps intensify east-southeastward over the next couple of hours. In this scenario,
    an increase in the threat for severe wind gusts and perhaps large
    hail with any stronger, embedded cores would be possible.

    Trends will continue to be monitored, and a Severe Thunderstorm
    Watch may be needed for a portion of the area should it appear
    likely that this cluster will continue to persist.

    ..Chalmers/Gleason.. 05/10/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5UpjMQbUX4vta_8gzDHeLvl80gRaztt1cK_jkK9TkNe2OFGIdfF1cp8ItlWPzh_KUGrXVTByq= 4gZCU1yh4gb1AXClyc$ for graphic product...

    ATTN...WFO...SHV...FWD...

    LAT...LON 33289593 33339517 33369392 33269340 33109317 32819289
    32419284 31959304 31689374 31609435 31639517 31749596
    31909654 32349699 32669693 32979659 33239598 33289593=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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    * Origin: Capitol City Online (1:2320/107)