• MESO: Mesoscale Discussion 1335

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jun 29 14:37:07 2023
    ACUS11 KWNS 291437
    SWOMCD
    SPC MCD 291436=20
    TNZ000-KYZ000-INZ000-ILZ000-291630-

    Mesoscale Discussion 1335
    NWS Storm Prediction Center Norman OK
    0936 AM CDT Thu Jun 29 2023

    Areas affected...western and central Kentucky...parts of adjacent
    southeastern Illinois...southern Indiana and middle Tennessee

    Concerning...Severe Thunderstorm Watch 414...

    Valid 291436Z - 291630Z

    The severe weather threat for Severe Thunderstorm Watch 414
    continues.

    SUMMARY...Some uncertainty lingers, but the ongoing developing
    cluster of storms may be maintained and become better organized with
    increasing potential to produce damaging wind gusts while tending to
    propagate south-southeastward through midday. Trends are being
    monitored for the possibility of an additional severe weather watch
    or two to the south and perhaps southeast of WW 414.

    DISCUSSION...Within modest northwesterly deep-layer mean flow,
    stronger convection is currently tending to propagate
    south/southwesterly, aided by elevated inflow inflow of seasonably
    moist air with large potential instability emanating from the middle Mississippi Valley. On the western flank of the primary evolving
    convective system, strengthening surface outflow appears to be in
    the process of advancing across and south of the Evansville
    IN/Owensboro Ky areas, as southerly near-surface inflow begins to
    destabilize ahead of it, across western Kentucky and Tennessee.=20
    While warming above both the elevated and developing unstable near
    surface inflow may tend to increase inhibition, cold pool
    strengthening and associated lift coupled with continuing insolation
    may counter this. If vigorous convective development is maintained,
    vertical shear for boundary-layer based storms appears sufficiently
    strong to support further organization and increasing potential for
    damaging wind gusts.

    ..Kerr.. 06/29/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6jHiyxe4CsTvED79-jsrKyyNOwXSQu1J4dj2xTCuLrqQglD4d3pO1JTTPx3VpmFAoCLYtOhIH= GCy0CCM2zdcTIMHfhk$ for graphic product...

    ATTN...WFO...LMK...OHX...PAH...

    LAT...LON 38128674 37468568 36098544 35908711 37688814 38128674=20


    =3D =3D =3D
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