Nav aids

A yellow data buoy is established in the South Atlantic off Brazil at 17-58.12S 038-41.48W until October 19; message cancels October 26.

South Atlantic Ocean · HYDROLANT 810/26

What this record establishes

Listed in force

The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.

Source and dates: NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-04-23 01:29Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-09-29 22:47Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: South Atlantic Ocean. The parsed report position is -17.969, -38.691. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the South Atlantic Ocean →

issued: 2026-04-23 01:29Z
status: Listed in force
self-cancels: 2026-10-20 00:01Z
sea: South Atlantic Ocean
position: -17.969, -38.691
nearest port: Vitoria · 169 nm
source: NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z

Original warning text

SOUTH ATLANTIC.
BRAZIL.
1. YELLOW ODAS BUOY ESTABLISHED IN
   17-58.12S 038-41.48W UNTIL 19 OCT.
2. CANCEL THIS MSG 200001Z OCT 26.

Reading this warning

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.
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.

All warning terms →

Conditions at the position · now

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MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation

Collected reports in this area · aids-to-navigation notices

223 within 180 nm since 1999 · 2 in the last 12 months · 1 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.

Araripe light 16-08.09S 038-57.86W unlit until 31 jan 272026-08-05
Mucuri light 18-03.61S 039-32.06W unlit until 09 mar 252024-09-11
Ponta da baleia light 17-41.31S 039-08.27W unlit until 13 aug2024-02-16
Ponta uchuria light 20-19.40S 040-17.20W unlit until 31 jul2024-02-02
Alinh c ponta do tagano range light 20-19.26S 040-16.55W unlit until 26 jul2024-01-28
Ilha do boi light 20-18.64S 040-16.90W unlit2023-12-29

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

138 aids-to-navigation notices listed in force · see all

Record snapshot 2026-09-29 22:53Z; 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.