Derelict vessel partially submerged and adrift in 20-03.46S 149-47.15E at 250139Z apr
Coral Sea · HYDROPAC 1452/17
What this record establishes
Archived notice · 2017-04-28 07:36Z
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 23/17 250651Z APR 17.. Issued 2017-04-25 07:39Z. 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
- Coral Sea. The parsed report position is -20.058, 149.786. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 2017-04-25 07:39Z
- status
- Archived notice
- self-cancels
- 2017-04-28 07:36Z
- authority
- SEA SAFETY 23/17 250651Z APR 17.
- issued by
- SEA SAFETY
- sea
- Coral Sea
- position
- -20.058, 149.786
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CORAL SEA. AUSTRALIA-NORTHEAST COAST. DNC 05. 1. DERELICT VESSEL PARTIALLY SUBMERGED AND ADRIFT IN 20-03.46S 149-47.15E AT 250139Z APR. 2. CANCEL THIS MSG 280736Z APR 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.
- 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
25 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.
- Derelict five meter M/V, yellow and white hull, adrift in 18-45.77S 147-00.97E at 022140Z jun2021-06-02
- Derelict 11 meter vessel gypsy, partially submerged and adrift in 20-03.9S 148-33.4E2019-11-21
- 40 foot vessel clipper t disabled and adrift in 21-39.67S 150-13.00E at 141520Z oct2019-10-14
- Derelict six meter vessel adrift in vicinity 22-09.3S 151-04.8E at 192211Z jun2019-06-20
- Derelict six meter vessel partially submerged and adrift in 21-34.2S 149-35.5E at 212200Z nov2018-11-21
- Derelict ten meter vessel, white hull, adrift in 22-05.0S 150-18.7E at 031810Z feb2018-02-04
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
- Little bugatti reef light K3053 in position 20-01.23S 150-15.37E unreliableNav aids · 26.6 nm
- Ferris shoal AIS aid to navigation mmsi 995036163 in position 19-51.20S 150-20.20E unreliableWrecks · 33.4 nm
- Marilyn shoal AIS aid to navigation mmsi 995036164 in position 19-48.51S 150-22.80E unreliableWrecks · 36.7 nm
- Creal reef RACON alrs vol 2 K3052 in position 20-31.87S 150-22.68E inoperativeNav aids · 43.8 nm
Worldwide in the collected sources
6 derelict & adrift vessels listed in force · see all
Record snapshot 2026-10-02 03:24Z; 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.