We have this announcement from Notify NYC:
Notification issued 10/5/13 at 4:00 PM. There will be a fireworks display off of Pier 16, in the East River near the South Street Seaport in Manhattan tomorrow, 10/6/13, at approximately 7:20 PM.
“[O]ff of Pier 16″ means directly in front of the North Heights, so the display will be easily visible from the Promenade and from Pier 1, Brooklyn Bridge Park. It should be easily heard throughout the Heights, Cobble Hill, and DUMBO.