• MESO: Mesoscale Discussion 1206

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sat Jun 8 23:20:47 2024
    ACUS11 KWNS 082320
    SWOMCD
    SPC MCD 082320=20
    KSZ000-COZ000-090045-

    Mesoscale Discussion 1206
    NWS Storm Prediction Center Norman OK
    0620 PM CDT Sat Jun 08 2024

    Areas affected...Portions of southeast and east-central CO into far southwest/west-central KS

    Concerning...Severe Thunderstorm Watch 398...

    Valid 082320Z - 090045Z

    The severe weather threat for Severe Thunderstorm Watch 398
    continues.

    SUMMARY...Risk of very large hail (up to 2.75 inches), significant
    gusts (70-80 mph), and a couple tornadoes continues across parts of
    Severe Thunderstorm Watch 398.

    DISCUSSION...Latest radar data from KGLD/KPUX depicts a pair of
    intense discrete supercells tracking generally east/southeastward at
    around 20 kt over Kit Carson, Cheyenne, and Lincoln Counties in
    east-central CO. A tornado and baseball-sized hail has been reported
    with the northern/eastern supercell. These storms are in a very
    favorable environment for the maintenance of supercells, with
    moist/backed easterly surface winds (lower 60s dewpoints) beneath a
    belt of 40-50-kt midlevel westerlies (per regional VWP).
    Additionally, ample clockwise low-level hodograph curvature (around
    250 m2/s2 effective SRH) should support continued strong
    low/midlevel mesocyclones given the seperated/discrete mode. As a
    result, very large hail (up to 2.75 inches) and a couple tornadoes
    are the main concern with these storms, with locally damaging gusts
    also probable.=20

    Farther south over Otero and Bent Counties in southeastern CO, an
    intense line segment has evolved in a moderately unstable air mass.
    40 kt of effective shear orthogonal to the line and a
    moist/well-mixed boundary layer should support the maintenance or
    even intensification of these storms as they continue eastward.
    Significant gusts of 70-80 mph could accompany this activity. A
    brief mesovortex tornado or two is also possible with these storms,
    given the ample low-level SRH described above.

    ..Weinman.. 06/08/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_XYx8_S5ZfQMIzKrI1PJZH-4d6SqOf1JzrBfPFkdRMKCl9RNFhWJuztox9sRUDzNRgMa1pwyU= DYda2dtd-zQKNOH9Pg$ for graphic product...

    ATTN...WFO...DDC...GLD...PUB...BOU...

    LAT...LON 38860341 39350279 39340241 39210205 38810190 38020196
    37610219 37580294 37690359 37920368 38510352 38860341=20


    =3D =3D =3D
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