hey pluber....sorry you dont know the difference b/t an east swell and a sse swell its probably because you dont know how to surf......see ya next hurricane swell moron
There's a couple reasons why/how that can happen... a new swell arrives from a different direction, a fast moving storm or frontal system and it's fetch swings the swell around from a different direction (less likely), there's an error in the models (least likely). So there's your answer, genius.