1. Forum
  2. FidoNet
  3. WEATHER

  • MESO: Mesoscale Discussion 0350

    From COD Weather Processor@1:2320/107 to wx-storm@lists.illinois.edu on Sat Apr 4 03:28:03 2026
    ACUS11 KWNS 040327
    SWOMCD
    SPC MCD 040327=20
    MIZ000-WIZ000-MNZ000-040930-

    Mesoscale Discussion 0350
    NWS Storm Prediction Center Norman OK
    1027 PM CDT Fri Apr 03 2026

    Areas affected...portions of the western Great Lakes region

    Concerning...Freezing rain=20

    Valid 040327Z - 040930Z

    SUMMARY...Moderate freezing rain is expected to expand across
    portions of the western Great Lakes region over the next 1-2 hours,
    with the potential for rates of 0.10 to perhaps 0.25 inch per three
    hours.

    DISCUSSION...Latest mesoanalysis depicts a surface low over central
    Iowa with a warm front extending eastward across portions of
    northern Illinois/Indiana. To the north of this surface boundary,
    strong low-level warm air advection and frontogenetic forcing (noted
    around 850 mb per latest mesoanalysis) will support the
    development/expansion of a broad precipitation shield noted via
    regional radar imagery. With the lower-tropospheric warm air
    advection regime supporting a notable warm nose within the 850-700
    mb layer (evident in the 00Z MPX observed sounding) and surface wet
    bulb temperatures around 30 F, freezing rain is expected to be the
    dominant precipitation type across much of northern Wisconsin,
    extreme eastern Minnesota, and the western Upper Peninsula of
    Michigan, with the potential for rates to exceed 0.10, perhaps up to
    0.25, inch per three hours.=20

    With time, a mid-level shortwave trough currently analyzed across
    the northern Great Plains and the aforementioned surface low will
    shift northeastward, yielding an eastward expansion of the freezing
    rain threat into the rest of the Upper Peninsula of Michigan and
    extreme northern Lower Michigan.

    ..Chalmers.. 04/04/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!7GAROgVbbHzQBKDW9zUVEBh_ij2gRjs55QHVujnVj80vGIBlc4jzUI9iK2slxNcpmHvENcHDu= 8-NwnQeeAWUMEuoVfI$ for graphic product...

    ATTN...WFO...MQT...GRB...DLH...ARX...MPX...

    LAT...LON 46518748 46268706 45838714 45368752 45048776 44848800
    44718846 44788944 44888993 45179051 45369089 45529168
    45599241 45609301 45649337 45879346 46319321 46559244
    46639156 46679119 46749034 46808941 46718845 46518748=20


    =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 3.28-Linux
    * Origin: Capitol City Online (1:2320/107)