• MESO: Mesoscale Discussion 0564

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun May 9 02:15:41 2021
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    ACUS11 KWNS 090215
    SWOMCD
    SPC MCD 090215=20
    MOZ000-KSZ000-090415-

    Mesoscale Discussion 0564
    NWS Storm Prediction Center Norman OK
    0915 PM CDT Sat May 08 2021

    Areas affected...Northeast Kansas...Missouri

    Concerning...Tornado Watch 154...

    Valid 090215Z - 090415Z

    The severe weather threat for Tornado Watch 154 continues.

    SUMMARY...A wind damage, large hail and tornado threat will continue
    late this evening, affecting northeast Kansas and parts of Missouri.
    The severe threat will likely persist into the early overnight
    period necessitating a new watch further to the east.

    DISCUSSION...The latest radar imagery shows a cluster of strong to
    severe thunderstorms located from near Salina, Kansas northward into
    far southeast Nebraska. These storms are located along the northern
    edge of a moderately unstable airmass. The instability and moisture
    gradient extends east-southeastward across eastern Kansas into
    western and southern Missouri, along which a warm front is analyzed.
    Storm coverage will continue to increase with a linear MCS
    developing and moving southeastward along this gradient. As a cold
    pool organizes, supercells that remain intact as the line forms,
    will continue to have a threat for large hail and wind damage. The
    WSR-88D VWP at Topeka, Kansas shows a looped hodograph with 0-3 km
    storm relative helicity near 450 m2/s2. This will continue the
    tornado threat, especially with supercells. The wind-damage threat
    is expected to increase as the linear MCS matures, continuing after
    midnight as the line moves into western Missouri.

    ..Broyles.. 05/09/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!u_inn9PESzuTe4W5MOsSWwYWlcB-88u3wQ6S32ghR5oAATMckh0sH6oMNCP-usshctNavBQK$=
    for graphic product...

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

    LAT...LON 38699671 38069571 37449478 37079414 37009320 37499240
    38279220 39109257 39959458 39999598 39389675 38699671=20



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