• MESO: Mesoscale Discussion 1307

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jun 27 18:49:32 2023
    ACUS11 KWNS 271849
    SWOMCD
    SPC MCD 271848=20
    OKZ000-KSZ000-TXZ000-COZ000-NMZ000-272045-

    Mesoscale Discussion 1307
    NWS Storm Prediction Center Norman OK
    0148 PM CDT Tue Jun 27 2023

    Areas affected...northeast NM...southeast CO...western OK
    Panhandle...northwest TX Panhandle

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

    Valid 271848Z - 272045Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Monitoring for convective initiation near Raton Mesa.=20
    Subsequent storm development will gradually spread east into
    southeast CO and the TX-OK Panhandles. The stronger storms will be
    potentially capable of peak wind gusts 60-75 mph and large hail
    diameters 1-2 inches.

    DISCUSSION...Visible satellite imagery shows a towering cumulus
    field over escarpment in northeast NM. Surface mesoanalysis shows
    the western extension of morning thunderstorm outflow extends into
    northwest OK and southwest KS where observation sites show easterly
    component to flow. This easterly upslope flow is resulting in upper
    60s dewpoints in Texas County, OK (middle OK Panhandle county).=20
    Meanwhile, strengthening southwesterly flow is overspreading the
    Sangre de Cristos early this afternoon (40-55 kt at 500 mb) on the
    southern portion of a mid-level speed max over the central Rockies.=20
    Deeper mixing of the boundary layer is occurring across northeast NM
    with surface winds veering to the west-southwest and dewpoints fall
    into the 30s and lower 40s near I-25.

    As the developing convection initially in a drier airmass encounters increasingly rich low-level moisture and a more buoyant airmass
    towards the OK/TX/CO border, expecting thunderstorms to rapidly
    intensify. Large hail and severe gusts will be possible with the
    stronger storms. The severe risk will increase as this activity
    approaches the longitude of the CO/KS border.

    ..Smith/Grams.. 06/27/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5aigvGI3JvoFI4vckWUyz957r9pKOwczAkxkDP6JnqEe8GiJsffOnJvmNTD6W0CrCYKu61-PX= ZIZomFnGfE-weK9qG0$ for graphic product...

    ATTN...WFO...DDC...AMA...PUB...ABQ...

    LAT...LON 36760440 37380350 38340252 38390226 38190200 36110200
    35800227 35710259 36180444 36760440=20


    =3D =3D =3D
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