Tidal Wave Dreams

This is the second dream I had about a Tidal Wave/Tsunami hitting New York.  This time I was told that the tidal wave hitting New York will be 30 feet high, but there will also be a massive tidal wave that hits the East Coast of Florida as well as parts of South Carolina or Georgia. This tidal wave will be 50 feet in height. There was also some sort of disturbance in the ocean that caused this but I can't for the life of me remember what that disturbance was.