• MESO: Mesoscale Discussion 1900

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Aug 14 20:00:44 2024
    ACUS11 KWNS 142000
    SWOMCD
    SPC MCD 142000=20
    KSZ000-OKZ000-TXZ000-142200-

    Mesoscale Discussion 1900
    NWS Storm Prediction Center Norman OK
    0300 PM CDT Wed Aug 14 2024

    Areas affected...Portions of the TX/OK Panhandles...far northwest
    OK...and south-central KS

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

    Valid 142000Z - 142200Z

    Probability of Watch Issuance...20 percent

    SUMMARY...Isolated strong/severe downbursts are possible through the
    afternoon, though a watch is not expected here. The severe threat
    will increase later this afternoon/evening with northeastward
    extent.

    DISCUSSION...Boundary-layer cumulus is gradually deepening along a
    pre-frontal heat axis/confluence zone extending from the TX
    Panhandle northeastward into south-central KS. Over the TX
    Panhandle, cumulus is deeper and isolated convective initiation is
    underway. During the next few hours, continued
    heating/destabilization should aid in isolated to widely scattered
    high-based thunderstorms along the heat axis, and potentially along
    a slow-moving cold front over southwest KS. Surface temperatures
    climbing into the upper 90s/lower 100s and associated steep
    low-level lapse rates will support strong to locally severe
    downbursts with any high-based storms that can initiate through the
    afternoon. Modest deep-layer flow/shear (especially from the TX
    Panhandle into south-central KS) should generally limit storm
    longevity, and generally weak large-scale ascent casts uncertainty
    on overall storm coverage. Therefore, a watch is not expected for
    this area.

    Both instability and deep-layer wind shear increase with
    northeastward extent into central/northeast KS, and any storms that spread/develop into this area will pose a greater severe threat
    later this afternoon into the evening.

    ..Weinman/Thompson.. 08/14/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7N-ogTP0KNC62hX4z0O8pq_jp0x9Rrj-9fO9jjDx2an1Z4ZKNQQ0Gb-fc10eeqUlXHNYHUvnh= dUb6RfPDCDq-QboEPI$ for graphic product...

    ATTN...WFO...ICT...OUN...DDC...AMA...

    LAT...LON 37449851 35280095 35230148 35370188 35670213 35960211
    36260178 37490047 38149975 38459943 38599922 38629887
    38579848 38219816 37899819 37449851=20


    =3D =3D =3D
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