• MESO: Mesoscale Discussion 0456

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Apr 16 11:01:25 2024
    ACUS11 KWNS 161101
    SWOMCD
    SPC MCD 161100=20
    MOZ000-IAZ000-KSZ000-NEZ000-161300-

    Mesoscale Discussion 0456
    NWS Storm Prediction Center Norman OK
    0600 AM CDT Tue Apr 16 2024

    Areas affected...Eastern KS...southeast NE...southwest IA...far
    western MO

    Concerning...Tornado Watch 114...115...

    Valid 161100Z - 161300Z

    The severe weather threat for Tornado Watch 114, 115 continues.

    SUMMARY...Isolated severe storms will remain possible through
    mid-morning within WWs 114-115, with the greatest tornado threat
    over east-central KS. Very isolated severe may also spread east of
    the watches into parts of southwest IA and far western MO.

    DISCUSSION...Over eastern KS, the only well-developed supercell that
    earlier produced a tornado in Greenwood County, KS appeared to have
    weaken for a period before restrengthening again as other cells
    around it diminished. Given the history of this supercell, another tornadogenesis cycle appears to be underway over east-central KS
    given the mid 60s surface dew points and relative lack of
    potentially destructive interference amid 0-1 km shear of 40-45 kts.
    How long this process can last is uncertain given somewhat less
    favorable thermodynamics downstream over the MO River. But should a
    long-track supercell persist, it is plausible that a small
    additional watch may be needed.

    Across NE, the overall severe threat has become more nebulous after
    the decay of the severe-producing QLCS over north-central
    KS/south-central NE earlier this morning. Remnant deep convection is
    still ongoing across parts of eastern NE with renewed development
    just southeast of the 990-mb surface cyclone in south-central NE.
    Instability within much of this portion of the warm sector appears
    to be subsiding, especially with pervasive convection across eastern
    KS. Still, isolated severe wind gusts, a brief tornado, and
    marginally severe hail will remain possible for a few more hours.

    ..Grams/Gleason.. 04/16/2024

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_NmTkWmVUNnKGSygE2zAvR3SDIHRc7pCNsJiosSDAoxDRExHFjBfBzoxYE3LDkSROlUXLEFV1= GxPjo5CwjyQ7_7w-9c$ for graphic product...

    ATTN...WFO...SGF...DMX...EAX...OAX...TOP...ICT...GID...

    LAT...LON 41699681 41879545 40739481 39229458 38299448 37819538
    37539639 37819683 38229699 39279699 40949739 41699681=20


    =3D =3D =3D
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