anyone who knows anything at all about wave mechanics knows that this is not only possible but highly probable.
When you have two (ore mor) waves positioned just right, the high and low troughs of the waves ADD together.
If a high and low trough of a wave meet you will have no wave at that point at all, but the waves will actually contune past that point.
However if two (or more) highs happend to meet- look out, you could get waves beyond imagine (hundreds of feet)
Ah, that would not be the "scientists" like Algore who are hysterical about global warming.