• MESO: Mesoscale Discussion 1499

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Jun 29 00:36:31 2025
    ACUS11 KWNS 290036
    SWOMCD
    SPC MCD 290035=20
    SDZ000-290200-

    Mesoscale Discussion 1499
    NWS Storm Prediction Center Norman OK
    0735 PM CDT Sat Jun 28 2025

    Areas affected...Southwest into south central South Dakota

    Concerning...Severe Thunderstorm Watch 473...

    Valid 290035Z - 290200Z

    The severe weather threat for Severe Thunderstorm Watch 473
    continues.

    SUMMARY...Threat for severe outflow gusts and wind-driven hail
    should persist through 02z.

    DISCUSSION...A persistent supercell with a history of 65-85 mph
    outflow gusts and hail up to 1.75 inches in diameter continues to
    move southeastward, loosely in tandem with the immediate cool side
    of a weak surface cold front. The 00z UNR sounding, combined with
    regional surface observations, suggests this storm will remain in an environment of sufficient buoyancy and vertical shear for storm
    maintenance for the next couple of hours. The observed storm
    structure also suggests the combined potential for wind-driven hail
    with severe outflow gusts on the right flank of the
    heavy-precipitation supercell.

    ..Thompson.. 06/29/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!73EVj92rFjVfzQIw60vfMxDExCh53yZyiL4eT5Z_6lGzuoX-OBjOU3kpNrSC00hocSUi3_K55= pstmwJBE79JyE4-Nfs$ for graphic product...

    ATTN...WFO...ABR...UNR...

    LAT...LON 43040070 43210127 43590170 43820163 43960100 43860052
    43660023 43439999 43070019 43040070=20

    MOST PROBABLE PEAK WIND GUST...75-90 MPH
    MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN


    =3D =3D =3D
    To unsubscribe from WX-STORM and you already have a login, go to https://lists.illinois.edu and use the "Unsubscribe" link. Otherwise email Chris Novy at cnovy@cox.net and ask to be removed from WX-STORM.

    --- SBBSecho 3.20-Linux
    * Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (1:2320/105)