THUNDER BAY (IMO 8635203)
THUNDER BAY is a Tug built in 1985 and flying the United States of America flag, placing it in its 41st year of service. The vessel reports a gross tonnage of 500 and a deadweight tonnage of 0. This vessel is configured for specialized towing and assistance operations. The vessel is classed by Other, which is not an IACS member. It has been observed in the North America East Coast region. THUNDER BAY has operated under one former name and one former flag state. No port state control (PSC) inspection records are on file for this vessel.
- Type: Tug
- Flag: United States of America
- Year built: 1985
- MMSI: 366999983
- Call sign: NNTB
- Gross tonnage: 500
- Deadweight: 0 t
- Registered owner · Ship manager: UNITED STATES GOVT COAST GUARD (USA)
- Last AIS position: 41°38.6′N · 071°14.5′W · Speed 0.2 kn · at anchor · received 12 October 2026 at 09:29 UTC
- Destination: QUONSETT, RI
Frequently asked questions
What type of vessel is THUNDER BAY?
THUNDER BAY is a Tug. It was built in 1985 and is currently in its 41st year of service.
What is the gross tonnage of THUNDER BAY?
The vessel reports a gross tonnage of 500. Its deadweight tonnage is recorded as 0.
Where has THUNDER BAY been operating recently?
The vessel has been observed in the North America East Coast region. This area represents its most recent recorded geographic activity.
How many inspections has THUNDER BAY undergone?
No port state control (PSC) inspection records are on file for this vessel.
What is the flag history of THUNDER BAY?
The vessel currently flies the United States of America flag. It has operated under 1 former flag state during its service history.
Live AIS via Rynda — combined with classification, PSC, sanctions and ownership data.