• MESO: Mesoscale Discussion 2084

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Tue Sep 16 19:22:22 2025
    ACUS11 KWNS 161922
    SWOMCD
    SPC MCD 161921=20
    MOZ000-IAZ000-KSZ000-NEZ000-SDZ000-162115-

    Mesoscale Discussion 2084
    NWS Storm Prediction Center Norman OK
    0221 PM CDT Tue Sep 16 2025

    Areas affected...eastern Nebraska...southwestern Iowa...and
    northwestern Missouri

    Concerning...Severe potential...Watch unlikely=20

    Valid 161921Z - 162115Z

    Probability of Watch Issuance...5 percent

    SUMMARY...Thunderstorm activity to increase through the afternoon
    with risk for a few instances of strong to severe wind.

    DISCUSSION...Thunderstorm activity is increasing across portions of
    central Iowa. Strong daytime heating amid mid 60s dew points has
    aided in MLCAPE around 1500-3000 J/kg. Though temperatures are hot
    (warming into the mid 80s to 90s F) with moderate instability, deep
    layer flow remains weak. A few stronger cores may produce some
    instances of strong to severe wind, however, weaker shear will keep
    the severe risk limited and localized. Thunderstorm activity should
    diminish this evening with the loss of daytime heating.

    ..Thornton/Guyer.. 09/16/2025

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!6S5f-9_VQARmIfaiS8WMt5g3hRdKwgZX5YjqVH6cjpqIZCeRJZGe08M9mompuNsjLHe3ZzrbF= WeYUI51WKDc2B3AjO0$ for graphic product...

    ATTN...WFO...LSX...DVN...DMX...EAX...FSD...OAX...TOP...GID...

    LAT...LON 39989570 40329692 40869736 41699753 42709710 43249630
    43169532 42819367 42159273 40039225 39149316 39089434
    39989570=20

    MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH


    =3D =3D =3D
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