http://www.youtube.com/watch?v=_akPBwrLl3Y
The coloring reminds me of the Zapruder tape. Furthermore: pay attention to the audiotrack; you hear the wind blowing in the mic, but you also hear a door shutting (!) and the guy that's talking in the background is clearly in a room with walls.
Typical smoke of something burning in the background (never forget the smoke if you want added dramatic effect

). Whatever is burning in the distance, the firetruck is still parked where it is and no firemen in sight

I also love how the roads are totally clean and tidy, although that could be just a 'coincidence' of course.
The 'weather channel guy' (let's call him that) is looking into the distance giving the audience the feeling of 'depth perception', but I'd stick to
green screen on an outside parking lot if anyone asked me.
So let's look at who uploaded this video:
http://www.youtube.com/user/REDONK2011
Joined: may 23, 2011 hmm..
7 uploaded videos: hmmm...
of which 4 are related to Joplin, 2 are musicvids from crapartists (Rihanna,Britney Spears and Beyonce) and 1 is a trailer of Call of Duty Modern Warfare 3 hmmmmmmmmmm
The only subscriber and commenter on that channel:
http://www.youtube.com/user/AOTSNEWS
Joined: march 15, 2011 hey, that's not long after the Japan "earthquake/tsunami"
9 uploaded videos: note: all uploaded between march 15 and april 8th
of which 4 are related to the Japan "earthquake/tsunami" and 5 are about mindless hollywood celebrities
Ow, and take a look at this:
http://www.youtube.com/watch?v=P6-BEOWKpAU
Helloooo fake audiotrack!
Conclusion: probably the same persona, and this is probably how the "perps" think they can disguise themselves on youtube these days: mix in some popular mindless stuff with fake vids and make separate accounts for different events.