It really comes down to sharks are moving into waters they had never really been in that much before. My buddy sent me 2 pictures in the summer of 4 to 6ft great whites caught from the beach in Brigantine. Great whites are being tagged up in cape cod now. Probably was a shark that was seen, fact is we are in their world when we get in the water and unfortunately they have the upper hand in the suprise category
I think they migrate past here (NJ) at this time of year. I'm pretty sure they Winter off of the Bahamas. That's what they said on Shark week. In the Spring, they come close to the NJ coast in early May.