Odas buoy K4 adrift in 54-35.4N 012-39.6W at 160800Z dec
North Atlantic Ocean · HYDROLANT 4084/17
What this record establishes
Archived notice · 2017-12-17 01:32Z
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) · NAVAREA I 203/17 160840Z DEC 17.. Issued 2017-12-16 13:20Z. 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
- North Atlantic Ocean. The parsed report position is 54.590, -12.660. 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
- Odas buoy K4 adrift in vicinity 54-42.6N 012-32.4W at 150800Z deccancelled by this notice
- Cancel HYDROLANT 4084/17 and this msg, buoy recoveredlater cancellation 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.
- HYDROLANT 3835/172017-11-27 · Archived notice
- HYDROLANT 3844/172017-11-28 · Archived notice
- HYDROLANT 3854/172017-11-29 · Archived notice
- HYDROLANT 3868/172017-11-30 · Archived notice
- HYDROLANT 3881/172017-12-01 · Archived notice
- HYDROLANT 3896/172017-12-03 · Archived notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2017-12-16 13:20Z
- status
- Archived notice
- self-cancels
- 2017-12-19 13:20Z
- authority
- NAVAREA I 203/17 160840Z DEC 17.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 54.590, -12.660
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. DNC 19. 1. ODAS BUOY K4 ADRIFT IN 54-35.4N 012-39.6W AT 160800Z DEC. 2. CANCEL HYDROLANT 4062/17. 3. CANCEL THIS MSG 191320Z DEC 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.
- Off station / missing buoy
- A buoy that is not in its charted position — dragged, damaged, missing or removed.
- 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.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean 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 · drifting objects
37 within 180 nm since 2002 · 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.
- Odas buoy K4 adrift in vicinity 55-24N 011-47W2020-03-11
- Odas buoy K4 adrift in vicinity 55-24.4N 011-46.4W at 100800Z mar2020-03-10
- Odas buoy K4 adrift in vicinity 55-23.8N 011-47.1W at 020700Z mar2020-03-02
- Odas buoy K4 adrift in vicinity 55-30.0N 012-06.6W at 271400Z feb2020-02-27
- Odas buoy K4 adrift in vicinity 54-42.6N 012-32.4W at 150800Z dec2017-12-15
- Odas buoy K4 adrift in vicinity 54-55.2N 012-41.4W at 130800Z dec2017-12-13
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
3 drifting objects listed in force · see all
Record snapshot 2026-09-26 00:24Z; source collection times vary.
Debris
Logs, buoys, mooring gear and other objects adrift. All current drifting objects →
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.