Odas buoy, yellow, FL(5) y 20 sec, temporarily established until 11 may 24 in 23-01.41S 041-58.78W
South Atlantic Ocean · HYDROLANT 2596/23
What this record establishes
Archived notice · 2024-05-12 00:01Z
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 V COASTAL 630/23 132131Z NOV 23.. Issued 2023-11-13 23:12Z. 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
- South Atlantic Ocean. The parsed report position is -23.023, -41.980. 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
- Vessel, 43 persons on board, adrift in 33-47.00N 018-19.00E at 130337Z novcancelled by this notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2023-11-13 23:12Z
- status
- Archived notice
- self-cancels
- 2024-05-12 00:01Z
- authority
- NAVAREA V COASTAL 630/23 132131Z NOV 23.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V COASTAL
- sea
- South Atlantic Ocean
- position
- -23.023, -41.980
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL. DNC 01. 1. ODAS BUOY, YELLOW, FL(5) Y 20 SEC, TEMPORARILY ESTABLISHED UNTIL 11 MAY 24 IN 23-01.41S 041-58.78W. 500 METER BERTH REQUESTED. 2. CANCEL HYDROLANT 2595/23(56). 3. CANCEL THIS MSG 120001Z MAY 24.
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.
- Light characteristic
- The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- 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.
- 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.
Collected reports in this area · aids-to-navigation notices
299 within 180 nm since 1998 · 8 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.
- Ponta dos meros light 23-13.57S 044-20.83W unlit until 24 mar2026-09-26
- RACON at sao tome light 22-02.52S 041-03.17W inoperative until 24 mar2026-09-26
- Barra de itabapoana light 21-18.82S 040-57.95W unlit until 01 mar 272026-09-03
- Odas buoy temporarily established until 21 aug 27 in 21-34.20S 040-43.62W2026-08-21
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62W2026-04-14
- RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sep2026-04-02
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
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 93.2 nm
- Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…Exercises · 101.8 nm
- Underwater operations in progress until 110300Z oct by M/V sistac vitoria in 22-32.81S 040-04.04WSurveys · 109.7 nm
Worldwide in the collected sources
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-03 01:39Z; source collection times vary.
Nav aids
Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →
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.