• MESO: Mesoscale Discussion 1821

    From COD Weather Processor @1:2320/107 to All on Sunday, August 02, 2026 16:54:36
    ACUS11 KWNS 021654
    SWOMCD
    SPC MCD 021654
    NYZ000-021830-

    Mesoscale Discussion 1821
    NWS Storm Prediction Center Norman OK
    1154 AM CDT Sun Aug 02 2026

    Areas affected...portions of western NY

    Concerning...Severe potential...Watch unlikely

    Valid 021654Z - 021830Z

    Probability of Watch Issuance...20 percent

    SUMMARY...An isolated risk for damaging wind gusts and perhaps a
    tornado will skirt the international border near Lake
    Ontario/western New York the next couple hours.

    DISCUSSION...A bowing thunderstorm cluster has developed along a
    surface boundary near the international border/western NY. The
    downstream airmass is relatively cool, but moist, resulting in weak instability. However, low-level SRH is enhanced along the surface
    boundary and in proximity to the larger-scale surface low across the
    region. While instability is expected to remain weak, 30-40 kt
    effective shear magnitudes will support at least occasional storm
    organization. Most of the stronger convection will likely remain
    over Lake Ontario and or across the international border. However,
    this stronger bowing cluster could skirt the western NY/Lake Ontario
    shoreline over the next hour or two, resulting in a low risk for
    damaging gusts or perhaps a brief tornado.

    ..Leitman/Mosier.. 08/02/2026

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fjg!_CQ2O46Z_QsUDGLjiK6A8qb2xvqzAsc40XlorgWxFfCNSTP1Tx_aLPCbPFOWK76nVdDDeSKj1kzhkDSeGmGdla9dlOU$ for graphic product...

    ATTN...WFO...BUF...

    LAT...LON 43447943 44107714 44127630 43797586 43427596 43127695
    42907828 42957902 43037934 43447943

    MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


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    --- scorpsmtpd
    * Origin: capitolcityonline.net * KY, USA (1:2320/107)