• MESO: Mesoscale Discussion 1289

    From COD Weather Processor@1:2320/105 to wx-storm@lists.illinois.edu on Thu Jul 15 01:36:02 2021
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    ACUS11 KWNS 150135
    SPC MCD 150135=20

    Mesoscale Discussion 1289
    NWS Storm Prediction Center Norman OK
    0835 PM CDT Wed Jul 14 2021

    Areas affected...Central and east-central Iowa

    Concerning...Tornado Watch 378...

    Valid 150135Z - 150200Z

    The severe weather threat for Tornado Watch 378 continues.

    SUMMARY...A storm or two may linger in southeastern portions of WW
    378 beyond 9 PM CDT. Local extensions in time of the watch will
    likely be needed as the environment will remain favorable for
    tornadoes for another few hours.

    DISCUSSION...While the storm mode has trended less discrete over the
    last two hours, several embedded supercells have produced observed
    tornadoes during that time. The environment just ahead of this
    activity still remains favorable for tornadoes per the 00Z DVN
    sounding and KDVN VWP. With the increase in the low-level jet this
    evening, the environment will likely support tornadoes for a few
    more hours. Given that some activity may linger beyond 9 PM CDT,
    some local extensions in time of WW 378 will likely be needed.

    ..Wendt.. 07/15/2021

    ...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!qUnYEQHw-S0eLK84Wgqfdiowjau543ARatnccJufxxsctLzN6dynZi8rS35mCJpdlNKplaHv$=
    for graphic product...


    LAT...LON 41709407 42319326 42749236 42899184 42849159 42659145
    42299145 41869158 41749182 41679287 41649384 41709407=20

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