So, in English it means that lower Manhattan might be ...
Wellll....Not really lower Manhattan, at least not from this effect...
More likely parts of the Bronx, like around Hunt's Point, and areas around LaGuardia airport, some of the islands, like Rikers.....I think at the upper end of Manhattan around Hells Gate (which is where the East River, Harlem River and Long Island Sound all meet) is pretty high land (if I remember correctly)....
If the storm were to go inland around Toms River NJ, then the seiche effect would stuff the water up through the Narrows and slam lower Manhattan, and the area around Coney Island, Kennedy Airport, etc.
(Oh...and kudos for contributing to the swear jar....good extra effort!)