• MESO: Mesoscale Discussion 0320

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Mon Apr 1 18:14:23 2024
    ACUS11 KWNS 011814
    SWOMCD
    SPC MCD 011813=20
    MOZ000-KSZ000-012015-

    Mesoscale Discussion 0320
    NWS Storm Prediction Center Norman OK
    0113 PM CDT Mon Apr 01 2024

    Areas affected...Central/Eastern KS

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

    Valid 011813Z - 012015Z

    Probability of Watch Issuance...80 percent

    SUMMARY...Thunderstorms capable of large to very large (1" to 2.5")
    hail are possible across central and eastern KS this afternoon. A
    strong gust or two is also possible.

    DISCUSSION...Recent surface analysis places a low over northeast KS
    with a cold front extending southwestward from this low through
    south-central KS. Low-level stability remains within much of the
    region ahead of this front, where the surface conditions are
    characterized by temperatures in the low/mid 70s and dewpoints in
    the low 60s amid widespread cloud cover. Even so, steep mid-level
    lapse rates are in place and the combination of broad warm-air
    advection and ascent along the front is expected to result in
    convective initiation within the next hour or two.=20

    Given the initially elevated and embedded storm character, a
    somewhat messy storm mode is anticipated once initiation occurs.
    Even so, deep-layer vertical shear is quite strong, with recent
    mesoanalysis estimated 60 to 70 kt of 0-6 bulk shear. This shear is
    sufficient for updraft organization within in mature, deep updrafts.
    The presence of steep lapse rates will favor the development of
    large to very large hail (i.e. 1" to 2.5") within these mature and
    organized storms. Given the low-level stability and weak low-level
    shear, the tornado potential for the next few hours should remain
    low. However, further air mass destabilization and strengthening
    low-level flow over time may allow these storms to trend more
    surface based as they move eastward/northeast into MO, resulting in
    an increase tornado threat.

    ..Mosier/Thompson.. 04/01/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-qqLcDpGYA-yAh6ig_n1j1JgK4EQ27BBua6ygsT1cUHU9ew0_AjMNZAR-azgCel9AaN-Ho5Gp= WrkE8ldOA-HbHy_rr4$ for graphic product...

    ATTN...WFO...SGF...EAX...TOP...ICT...

    LAT...LON 37849748 39019596 39189492 38849439 38289427 37739441
    37339466 37109498 36999567 37019691 37029750 37149833
    37849748=20


    =3D =3D =3D
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