• MESO: Mesoscale Discussion 1541

    From COD Weather Processor @1:2320/107 to All on Wed Jul 8 18:16:38 2026
    ACUS11 KWNS 081816
    SWOMCD
    SPC MCD 081815
    WIZ000-IAZ000-MNZ000-082015-

    Mesoscale Discussion 1541
    NWS Storm Prediction Center Norman OK
    0115 PM CDT Wed Jul 08 2026

    Areas affected...Southeast Minnesota into central Wisconsin

    Concerning...Severe potential...Watch possible

    Valid 081815Z - 082015Z

    Probability of Watch Issuance...60 percent

    SUMMARY...Isolated large hail and damaging winds are the primary
    concerns with widely scattered to scattered storms this afternoon. A
    watch is possible should convective trends warrant.

    DISCUSSION...Thunderstorms have initiated near a stationary boundary
    in southern Minnesota. This activity is tied to an upstream
    shortwave trough in western Minnesota per water vapor imagery.
    Filtered heating through cirrus clouds has allowed temperatures to
    rise into the low/mid 80s F. The very moist air will support around
    1500 J/kg MLCAPE. Continued heating and increasing mid-level ascent
    will eventually lead to widely scattered to scattered storms.
    Isolated damaging winds and hail may occur with the strongest
    storms, though low/mid-level lapse rates are not overly steep. The
    surface reflection of the shortwave trough is also rather nebulous.
    Even so, low-level shear is sufficient for weakly rotating storms
    conditionally capable of a brief tornado. A watch may be needed this
    afternoon.

    ..Wendt/Hart.. 07/08/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!5CGk5pXUZ2kJQxiaqcaQGZFEha5yWAFExLXmsdCWCUxRk0NA4gyCHWj_a5ewLqSfgzfJX1AL6b8gLmXbqV6XjFm6YlI$ for graphic product...

    ATTN...WFO...GRB...MKX...ARX...MPX...DMX...

    LAT...LON 43329122 43369242 43349357 43549433 44199412 44869066
    44888941 44618906 44128887 43748892 43608911 43548969
    43329122

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...55-70 MPH
    MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


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    --- scorpsmtpd
    * Origin: Capitol City Online (1:2320/107)