Most incredible structure I've seen in a while, similar to the structure on May 26, 2013 but a more robust and mature supercell north of Omaha on , 2013. I wouldn't be surprised if there was a wrapped around the rain. Streaming live on http://tvnweather.com/live

Source: Mesocyclone like Alien Mothership! Cloud-to-ground lightning from pancake stack (Youtube).

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