There's at least two jet streams swirling around your flight path, both of which are indicating turbulence. I would say the first half, occasional to continuous light to moderate, especially at the start, and the middle of the ocean. The last 40% of the flight looks to be much better, just occasional light for that.
yuck, not what I like to here, but i have the worst luck when it comes to flights. Just out of curiosity, which maps do you read and how do you read them when dealing with an atlantic crossing, I'm always confused about those, that is if you don't mind giving away your trade secret, if you do I totally understand. I'll let you know how it was when I get to the other side.