Derelict S/V tropicat partially submerged and adrift in 09-25.43S 136-11.26E at 100821Z nov
Arafura Sea · HYDROPAC 3883/17
What this record establishes
Archived notice · 2017-11-13 09:21Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · SEA SAFETY 80/17 100858Z NOV 17.. Issued 2017-11-10 09:21Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Arafura Sea. The parsed report position is -9.424, 136.188. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Derelict S/V tropicat partially submerged and adrift in 09-17.9S 136-36.6Ecancelled by this notice
These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.
- HYDROPAC 3863/172017-11-09 · Archived notice
- HYDROPAC 3883/17 · this notice2017-11-10 · Archived notice
- issued
- 2017-11-10 09:21Z
- status
- Archived notice
- self-cancels
- 2017-11-13 09:21Z
- authority
- SEA SAFETY 80/17 100858Z NOV 17.
- issued by
- SEA SAFETY
- sea
- Arafura Sea
- position
- -9.424, 136.188
- vessel
- S/V TROPICAT · 4 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARAFURA SEA. DNC 05. 1. DERELICT S/V TROPICAT PARTIALLY SUBMERGED AND ADRIFT IN 09-25.43S 136-11.26E AT 100821Z NOV. 2. CANCEL HYDROPAC 3863/17. 3. CANCEL THIS MSG 130921Z NOV 17.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Derelict
- An abandoned vessel still afloat and drifting, with no one on board.
- Semi-submerged
- Floating at or just below the surface, so hard to see by eye or radar.
- Adrift
- Loose and moving with wind and current — a vessel, container, buoy, log or anything else no longer secured.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · derelict & adrift vessels
45 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- 15 meter F/V adrift in vicinity 09-39.07S 135-58.66E at 292205Z feb2024-03-01
- M/V vivierae II disabled and adrift due to engine failure in 08-47.08S 137-31.14E2023-03-05
- 20 meter F/V, orange hull, adrift in vicinity 10-11.30S 138-32.01E at 140730Z sep2022-09-14
- Derelict 20 meter vessel adrift in 10-47.3S 135-45.2E at 181107Z jan2021-01-18
- 20 meter vessel adrift in 10-20.26S 133-59.28E at 100700Z jan2021-01-10
- Derelict 10.4 meter M/V bison adrift in vicinity 12-08.1S 137-10.1E at 040742Z jan2021-01-04
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
6 derelict & adrift vessels listed in force · see all
Record snapshot 2026-10-01 21:06Z; source collection times vary.
Derelicts
Abandoned, disabled or drifting vessels. All current derelict & adrift vessels →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.