• MESO: Mesoscale Discussion 1285

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Wed Jun 24 00:23:34 2026
    ACUS11 KWNS 240023
    SWOMCD
    SPC MCD 240022=20
    NEZ000-WYZ000-240115-

    Mesoscale Discussion 1285
    NWS Storm Prediction Center Norman OK
    0722 PM CDT Tue Jun 23 2026

    Areas affected...portions of southeastern Wyoming into extreme
    western Nebraska

    Concerning...Severe Thunderstorm Watch 385...

    Valid 240022Z - 240115Z

    The severe weather threat for Severe Thunderstorm Watch 385
    continues.

    SUMMARY...Severe wind and hail will likely occur with any storms
    that manage to intensify and become sustained.

    DISCUSSION...Thunderstorms have struggled to become sustained east
    of I-25, possibly due to residual MLCINH over the warm sector.
    Nonetheless, MRMS mosaic radar imagery depicts deeper storm cores
    north of Laramie, WY, with up to 1 inch diameter hail likely
    falling. Should these storms manage to overcome the MLCINH and
    become sustained, larger severe hail (perhaps exceeding 2 inches in
    diameter) and severe gusts will become possible given 1500+ J/kg
    MLCAPE and 50-60 kts of effective bulk shear present.

    ..Squitieri.. 06/24/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!-tR034fz6VvB5XTZuSpEymc7gzDP5o1mfJ-aDh51tNtSiwh4iAprnlQOt36jUJw9Tp2xvCojg= nyIhFR8xcTzbs560fk$ for graphic product...

    ATTN...WFO...CYS...

    LAT...LON 41740643 42030549 42140456 42040349 41670332 41340345
    41100400 41070474 41090534 41200587 41330620 41740643=20


    =3D =3D =3D
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