LNM13-9C48AE
Received 23 Sept 2026, 00:00 UTC
Warning text
Positions open on the mapSTRAIT OF JUAN DE FUCA - ADMIRALTY INLET
General / Miscellaneous
MSIB 004-26 Quiet Sound Voluntary Slowdown https://www.pacificarea.uscg.mil/Our-Organization/Northwest-District/District-Staff/dp/dpw/notices/ The Quiet Sound voluntary commercial vessel slowdown in Admiralty Inlet aims to reduce underwater noise in Southern Resident killer whale critical habitat. The 2025-26 slowdown will be in effect starting at 0001 PST on 3 September 2026 and will remain in effect 24 hours per day until 2359 PST on 31 January 2027, at the latest, depending on orca presence. More information can be found at: https://quietsound.org/admiralty-inlet-slowdown. When in effect, the slowdown requests all inbound and outbound commercial vessels transiting through the slowdown zone not exceed the following speeds through water when safe and operationally feasible: 11 knots – General cargo, bulkers and tankers 14.5 knots – Vehicle carriers, cruise ships, and container vessels The voluntary vessel slowdown takes place in the inbound and outbound lanes of the shipping lanes within these boundaries: Northwest: a line drawn from Pt Hudson (48-07.04N 122-44.93W) to Admiralty Head (48-09.25N 122-40.77W) Northeast: a line drawn from Randall Pt (47-58.99N 122-21.17W) to Mukilteo Light (47-56.89N 122-18.48W) South: a line drawn from Apple Cove Pt (47-48-55.926N, 122-28.51.186W) to Edwards Pt (47-48.20N 122-23.70W) Speed transition zones are in place about 5 nautical miles prior to entering the slowdown area. Any directions from Puget Sound Vessel Traffic Service take precedence and supersede these measures. The voluntary slowdown is led by the Quiet Sound program at Maritime Blue, in cooperation with government agencies, tribal governments, industry partners and conservation groups. For more detailed information related to this slowdown and the Quiet Sound program, including a graphic of the voluntary slowdown area, refer to the following web address: https://quietsound.org/admiralty-inlet-slowdown.
USCG Northwest District Local Notice to Mariners 45/2026