I'm hoping someone that knows something about float aircraft can explain
why this guy went off the road.

The video:
http://www.liveleak.com/view?i=ed6_1244954465

The only print article I found has a goofy explanation/excuse about a gust.
You can see the windsock at 41 seconds in the video.

http://www.adn.com/news/alaska/v-gal...822922-t3.html

I just don't understand why he lost control of the aircraft.

--
Dallas