• MESO: Mesoscale Discussion 1541

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Fri Jul 14 15:19:11 2023
    ACUS11 KWNS 141519
    SWOMCD
    SPC MCD 141518=20
    NEZ000-KSZ000-141645-

    Mesoscale Discussion 1541
    NWS Storm Prediction Center Norman OK
    1018 AM CDT Fri Jul 14 2023

    Areas affected...Portions of southern NE and northern KS

    Concerning...Severe Thunderstorm Watch 489...

    Valid 141518Z - 141645Z

    The severe weather threat for Severe Thunderstorm Watch 489
    continues.

    SUMMARY...Severe/damaging winds should become an increasing concern
    as thunderstorms move southeastward this morning. Some risk for
    large hail will also exist.

    DISCUSSION...A small cluster of thunderstorms with embedded
    supercell structures has produced several reports of large hail up
    to 1.75 inches in diameter across southwestern/central NE over the
    past couple of hours. This convection is about to reach greater
    low-level moisture and MLCAPE along/south of a weak surface boundary
    draped near the NE/KS border. Current expectations are for these
    thunderstorms to gradually grow upscale into an MCS over the next
    couple of hours as they spread southeastward along an instability
    gradient. Scattered severe/damaging winds should become the primary
    severe threat across south-central NE and north-central KS this
    morning as this mode transition occurs. But, recent radar imagery
    still shows a robust supercell on the southwest flank of the
    cluster, which will likely remain capable of producing large hail in
    the short term.

    ..Gleason.. 07/14/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!8p63mbPshYuxq0vbeCG_H97HQRWTfsbWBydWBwOO5cZKW8tuoQFvYWd1BtyGaJgn_WLKunLId= mZRoo4ZK-pRxi9kNAo$ for graphic product...

    ATTN...WFO...GID...LBF...GLD...

    LAT...LON 40600098 40880030 41119959 40719834 40259796 39309829
    39189971 39380044 40280098 40600098=20


    =3D =3D =3D
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