The U.S. Coast Guard expanded the advisory notice issued Saturday to include all waters within 100 yards of the southern Manhattan Pierhead Line between the North Cove Yacht Harbor and the Brooklyn Bridge. Recreational vessels are not authorized to operate within this area, except for those requiring access to the North Cove Yacht Harbor. Ferries and charter boats that normally operate in this area and recreational vessels requiring access to the yacht harbor must contact the USCG. The East River Deepwater Range remains open to transiting commercial traffic. In addition, the security level for the security zone in the west channel of the East River at the United Nations Headquarters has been raised to MARSEC 2. Commercial vessels that need to transit the west channel between the Queensboro Bridge and East 35th Street in Manhattan must check in with the Coast Guard. Recreational vessels are not authorized in this area. (HK Law).