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  • MESO: Mesoscale Discussion 2106

    From COD Weather Processor @1:2320/107 to All on Sun Aug 23 22:57:02 2026
    ACUS11 KWNS 232256
    SWOMCD
    SPC MCD 232256
    WYZ000-UTZ000-IDZ000-NVZ000-240030-

    Mesoscale Discussion 2106
    NWS Storm Prediction Center Norman OK
    0556 PM CDT Sun Aug 23 2026

    Areas affected...northern utah...southeast Idaho and far southwest
    Wyoming

    Concerning...Severe Thunderstorm Watch 619...

    Valid 232256Z - 240030Z

    The severe weather threat for Severe Thunderstorm Watch 619
    continues.

    SUMMARY...Severe wind gusts and hail remain possible with strong to
    severe storms across UT/ID and far western WY this evening.

    DISCUSSION...Across WW 619, a band of strong to severe storms have
    matured across eastern ID with more isolated strong storms ongoing
    over northwest UT late this afternoon. A modestly moist, hot and
    moderately unstable air mas remains in place ahead of these storms
    which should continue to support them over the next several hours.
    Steep low-level lapse rates will primarily favor severe wind gusts,
    but enhanced mid-level flow at the base of the northern Rockies
    upper trough is supporting some cellular structures. Hail is
    possible, especially with any persistent supercells.

    Expectations are for convection to gradually spread northeastward
    across UT and far southwestern WY into this evening. Some clustering
    is possible, based on recent CAM solutions. This appears most likely
    over northern UT into southwest WY. This could support a localized
    corridor of more concentrated severe wind gusts later this evening.
    Given the ongoing storms and a generally favorable environment, the
    severe risk continues for much of WW619.

    ..Lyons.. 08/23/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!8mITdRAhDVM4L6LrR5c66AyK3P_tZ9sTMIigzdxPMXjfaWKmcK-MCi-vFwdBq0MrMNt2aw5uauDkGycV0TzXHGYkXOo$ for graphic product...

    ATTN...WFO...RIW...SLC...PIH...LKN...

    LAT...LON 40841426 42451323 42961137 42831076 42161028 41791002
    41361001 40651007 40011066 39891240 39851330 39921368
    40001404 40841426

    MOST PROBABLE PEAK WIND GUST...65-80 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)