• MESO: Mesoscale Discussion 1718

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Wed Jul 26 08:47:58 2023
    ACUS11 KWNS 260847
    SWOMCD
    SPC MCD 260847=20
    MNZ000-261015-

    Mesoscale Discussion 1718
    NWS Storm Prediction Center Norman OK
    0347 AM CDT Wed Jul 26 2023

    Areas affected...Central/South-Central MN

    Concerning...Severe Thunderstorm Watch 548...

    Valid 260847Z - 261015Z

    The severe weather threat for Severe Thunderstorm Watch 548
    continues.

    SUMMARY...Isolated damaging gusts and/or severe hail will likely
    persist for the next few hours. Overall severe coverage is expected
    to remain isolated enough to preclude a new watch.

    DISCUSSION...Several elevated thunderstorms had developed over the
    past hour and a half across west-central MN, fostered by warm-air
    advection atop outflow from the convective line now moving into
    west-central WI. The combination of moderate buoyancy and strong
    effective shear has allowed these storms to mature into elevated
    supercells, now strong enough to produce isolated severe hail. The
    threat for isolated severe will likely persist for the next hour or
    two before interaction with the southward-progressing outflow
    currently north of these cells (in the Otter Tail, Wadena, and Cass
    County vicinity). Interaction with this outflow could also result in
    occasional damaging gusts, although low-level stability will likely
    limit the occurrence of severe-caliber gusts. Current expectation is
    that the overall severe hail/wind potential should remain isolated
    enough to preclude watch issuance. Even so, convective trends will
    be monitored closely.

    ..Mosier.. 07/26/2023

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!5sIhwi_fWyAYMjaxYrSgCi8ytRctke3TInvAf82LioBVKWp1uhbZfZGHNzocAKANoAv8WDN8_= X3Hjph3yRxGBY1O3Xo$ for graphic product...

    ATTN...WFO...DLH...MPX...FGF...

    LAT...LON 46869612 46679486 45199393 44269396 44459549 45579608
    46869612=20


    =3D =3D =3D
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