• MESO: Mesoscale Discussion 1157

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Jun 4 01:56:56 2024
    ACUS11 KWNS 040156
    SWOMCD
    SPC MCD 040156=20
    ARZ000-OKZ000-040430-

    Mesoscale Discussion 1157
    NWS Storm Prediction Center Norman OK
    0856 PM CDT Mon Jun 03 2024

    Areas affected...Oklahoma...Western Arkansas

    Concerning...Severe potential...Watch likely=20

    Valid 040156Z - 040430Z

    Probability of Watch Issuance...80 percent

    SUMMARY...A severe threat is expected to develop across parts of
    Oklahoma and far western Arkansas late this evening. Isolated large
    hail and a few strong wind gusts will become likely. Hailstones of
    greater than 2 inches will be possible. Weather watch issuance will
    become likely, once the timing of cell initiation becomes more
    certain.

    DISCUSSION...The latest surface analysis shows a moist airmass in
    place across the much of the southern Plains. Visible satellite
    imagery shows a band of agitated cumulus extending from west to east
    across south-central Oklahoma. The 00Z sounding at Norman shows a
    cap in place near 700 mb with a near surface inversion. However,
    short-term model guidance rapidly strengthens a low-level jet across southeastern Oklahoma. Lift associated with this feature will likely
    result in scattered cell initiation between 03z and 04Z. In
    addition, forecast soundings have effective shear near 40 knots with
    700-500 mb lapse rates near 8 C/km. As cells initiate and mature,
    supercells with large hail will become likely. Hailstones greater
    than 2 inches in diameter will be possible with the more intense
    cells. Even though the storms will be elevated, a few strong to
    severe wind gusts may also occur.

    ..Broyles/Hart.. 06/04/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_bc_5P8AiDm4OroX-LP4gniLiu4CMIiEYrdUIz3kJyiPHyWBE7NJrBnwQ6Ly81kRpvUq-7ho0= o_uIE5XRaU882LGyn0$ for graphic product...

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

    LAT...LON 35489439 35199401 34739398 34379412 34109453 34229579
    34549769 34799868 35149901 35689894 35979848 35979762
    35739580 35489439=20


    =3D =3D =3D
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