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  • MESO: Mesoscale Discussion 0288

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Sun Mar 30 01:34:18 2025
    ACUS11 KWNS 300132
    SWOMCD
    SPC MCD 300132=20
    MIZ000-WIZ000-MNZ000-300630-

    Mesoscale Discussion 0288
    NWS Storm Prediction Center Norman OK
    0832 PM CDT Sat Mar 29 2025

    Areas affected...East-central Minnesota and northern Wisconsin

    Concerning...Freezing rain=20

    Valid 300132Z - 300630Z

    SUMMARY...Freezing rain will increase in intensity and coverage over
    the next few hours and persist into the early morning hours.
    Freezing rain rates of 0.05-0.1 inch per 3 hours are possible in
    some locations.

    DISCUSSION...The latest water-vapor imagery loop indicates a
    negatively tilted midlevel shortwave trough tracking northeastward
    into southwestern MN this evening. An expansive precipitation shield
    preceding this feature will continue overspreading central MN into
    northern WI into the early morning hours. Here, surface temperatures
    in the lower 30s F beneath a substantial warm nose (around 6-7C
    around 800-850 mb per 00Z soundings) will generally support freezing
    rain. A strengthening low-level jet (and related frontogenesis)
    combined with ascent preceding the midlevel wave will favor freezing
    rain rates of 0.05-0.1 inch per 3 hours in some locations. The
    heaviest rates will generally spread from west to east into the
    morning hours, with the longest duration of freezing rain expected
    over northern WI.

    ..Weinman.. 03/30/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!9Pm1vijXKJ0bC9pzSf0C3CIVdBmY0yGW45m2FCoo4brA5MVuU3oOVbN6-Q4q2_JfKtYZhEFrB= Ie85dLCvI_Z1lt3WA0$ for graphic product...

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

    LAT...LON 45289336 45029416 44819494 44969523 45319528 45699474
    45999395 46199237 46269094 46318993 46188852 46018780
    45738751 45198772 44598855 44538909 44708978 45349071
    45499135 45549204 45289336=20


    =3D =3D =3D
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