The bouy 20 miles out from Fire Island Inlet was reading swell in the 16 - 18 foot range and Ambrose Tower was reading a solid 10 foot .
Ambrose Tower is the bouy at the mouth of New York harbor .
The bouy 20 miles out from Fire Island Inlet was reading swell in the 16 - 18 foot range and Ambrose Tower , the bouy at the mouth of New York harbor , was reading a solid 10 foot .