• MESO: Mesoscale Discussion 2275

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Nov 20 20:59:14 2023
    ACUS11 KWNS 202059
    SWOMCD
    SPC MCD 202058=20
    ARZ000-TXZ000-OKZ000-202200-

    Mesoscale Discussion 2275
    NWS Storm Prediction Center Norman OK
    0258 PM CST Mon Nov 20 2023

    Areas affected...southeast Oklahoma and far northeast Texas.

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

    Valid 202058Z - 202200Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Isolated large hail possible this afternoon across
    southeast Oklahoma and far northeast Texas.

    DISCUSSION...A pocket of destabilization has occurred near a surface
    low in southeast Oklahoma where temperatures have warmed into the
    upper 70s with dewpoints in the mid to upper 50s. Low-level
    convergence associated with this surface low, combined with cool
    temperatures aloft and and the aforementioned instability has
    provided an environment favorable for scattered storm development
    this afternoon. Very strong mid-upper level flow is supporting
    rotating updrafts. Therefore, a few of these cells may be capable of
    isolated large hail for the next few hours. This threat will persist
    for a few hours and wane after sunset with the loss of daytime
    heating.

    ..Bentley/Gleason.. 11/20/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5HsLp-GBqxthDQLNsJKJctc2zv7ZuuTM7FmyYr08_v8pnn4_4PEtgAFFMARrMG_5si2pdlAEF= j2Mira2tgeREK7po2w$ for graphic product...

    ATTN...WFO...LZK...SHV...TSA...FWD...OUN...

    LAT...LON 33679530 33869643 34069668 34209674 34659654 35029607
    35109531 34849459 33939438 33639446 33599470 33679530=20


    =3D =3D =3D
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