MrEightFive said:
Seems they are at least parts of same (more lengthy) video - cloud formations are very similar, but not exactly the same.
Definitely taken from the same place. See first 10 secs of the 2011 video (YT).
Here is a similar phenomenon (posted Jun-15-2011):
_http://www.liveleak.com/view?i=766_1308156850