Fisherman describes a 6-foot wave near the New Jersey coast . ( CNN ) -- Scientists are studying what caused tsunami-like waves that observers spotted near the New Jersey coast earlier this month . The waves were so high that he was forced to swim out of his boat and onto dry land. Scientists are studying what caused the waves , the National Weather Service says .
Fisherman describes a 6-foot wave near the New Jersey coast . The waves were so high that he was forced to swim out of his boat and onto dry land. Scientists are studying what caused the waves , the National Weather Service says .