The extreme sports world is mourning the loss of a true pioneer. Legendary skydiver and BASE jumping trail blazer Alexander Polli was killed in the French Alps after crashing into a tree during a wingsuit run, he was 31. Lost but not forgotten, RIP Alex!

Sean MacCormac doesn't mind a bit of danger and was willing to go to the extreme to get the shot. He leaps from a plane while a storm is brewing and the jump zones were shut down. Click play and witness Sean MacCormac and the Red Bull Air Force cloud surf an active thunderstorm!

Music:
0:09 "Reborn" by Vision (Sounds of Red Bull)
https://www.youtube.com/playlist?list=PLHT0PZMhBKjyxEV3olGFQktjoBCSR5j8S
1:17 "Leave It All Behind" by The Conscious (Sounds of Red Bull)
https://www.youtube.com/playlist?list=PLHT0PZMhBKjxYH0eVkWc4ki_e48-wjsJF

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Missed Top 16? Check out full Top 16 highlights here!.

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Watch the full replay here.