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United States flag

BAY MONARCH — Passenger · MMSI 366985310

USUnder way using engine
World map showing the last known position of BAY MONARCH at 37° 48.027' N, 122° 23.876' W
NSEW
Current PositionNo recent signal

BAY MONARCH has not broadcast an AIS position for 85 days. Its most recent report placed it in the North Pacific Ocean, at 37.8005° N, 122.3979° W, on 15 Jun 2026, 21:42 UTC. It was sailing from SAUSALITO to SAN FRANCISCO.

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Updated 84 days ago using terrestrial data
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Under way using engine
Current Navigational Status
0.2 kn
Speed
337.0°
/ 314°
Course / Heading
2.4 m
Static Draught
2.4 m
Current Draught

Voyage Tracker

ATD
01:05 UTCMay 4, 2026
ETA
01:20 UTCMay 4, 2026
BAY MONARCH

BAY MONARCH

Identity

Passenger
Type
United States flagUS
Flag
N/A
IMO Number
366985310
MMSI
WCZ9381
Call Sign

Specifications

41 m × 12 m
Length × Breadth
N/A
Year Built
N/A
Deadweight
N/A
Gross Tonnage
N/A
Engine Power
N/A
Builder
N/A
Class Society
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Dive into the fleet, port, and flag state that BAY MONARCH is part of.

Flag State
All US-flagged vessels
Browse every ship currently registered under the US flag, with live AIS positions.
Vessel Type
Browse all Passengers
See the global fleet of passengers tracked on MarineRadar with live AIS data.
Departure Port
Port of SAUSALITO
Port traffic, arrivals and live vessel positions for SAUSALITO (USJMC).
Destination Port
Port of SAN FRANCISCO
Arrivals, berth specifications, and live vessel traffic for SAN FRANCISCO (USSFO).

About BAY MONARCH

Identity · Ownership · Class · Route

BAY MONARCH — Passenger

BAY MONARCH is a passenger registered under the United States of America flag.

BAY MONARCH route and voyage history

BAY MONARCH is currently on a voyage from SAUSALITO to SAN FRANCISCO with an estimated arrival on 2026-05-04T01:20:00Z. The live route and current course of BAY MONARCH are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

Vessels in the same class as BAY MONARCH can be seen in the Similar Vessels section above or in the full passenger fleet at /vessel-type/passenger.

Frequently Asked Questions

Where is BAY MONARCH right now?+
BAY MONARCH has not broadcast an AIS position for 85 days. The most recent broadcast placed it in the North Pacific Ocean, on 15 Jun 2026, 21:42 UTC. It was sailing from SAUSALITO to SAN FRANCISCO. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.
What are the identifiers for BAY MONARCH?+
BAY MONARCH broadcasts MMSI 366985310, with call sign WCZ9381. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is BAY MONARCH?+
BAY MONARCH is classified as a passenger vessel registered under the US flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full passenger fleet at /vessel-type/passenger and full US flag list at /flag/us.
How can I see the live position of BAY MONARCH?+
MarineRadar shows the latest AIS broadcast from BAY MONARCH above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is BAY MONARCH's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is BAY MONARCH?+
As a passenger, BAY MONARCH sits in the same design class as the other passengers listed in the Similar Vessels section of the vessel page, or in the full passenger directory at /vessel-type/passenger.

BAY MONARCH — Key Facts

MMSI
366985310
Call sign
WCZ9381
Vessel type
Passenger
Flag state
US
Navigation status
Under way using engine
Current speed
0.2 knots
Course over ground
337.0°
Heading
314°
Last known position
37.8005°, -122.3979°
Destination
SAN FRANCISCO
ETA
2026-05-04T01:20:00Z
Departure port
SAUSALITO
Actual time of departure
2026-05-04T01:05:00Z
Current draught
2.4 m
Maximum static draught
2.4 m
AIS last updated
2026-06-15T21:42:00Z