Nav aids

Demerara entrance buoy 06-56.80N 058-03.43W unlit

North Atlantic Ocean · NAVAREA IV 306/21

What this record establishes

Archived notice · 2024-04-19 16:09Z

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) · GUYANA 25/21 151335Z APR 21.. Issued 2021-04-15 14:03Z. 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 6.947, -58.057. 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 North Atlantic Ocean →

issued: 2021-04-15 14:03Z
status: Archived notice
authority: GUYANA 25/21 151335Z APR 21.
NAVAREA: NAVAREA IV
issued by: GUYANA
sea: North Atlantic Ocean
position: 6.947, -58.057
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
GUYANA.
DEMERARA ENTRANCE BUOY 06-56.80N 058-03.43W UNLIT.

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.
Unlit / extinguished: A light, buoy or structure that is not showing its charted light.

All warning terms →

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

12 within 180 nm since 2013 · 1 in the last 12 months · 3 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.

Two odas buoys established in vicinity 06-57.93N 057-48.54W2025-12-24
Safewater buoy ls 06-04.81N 055-12.82W missing2025-07-22
Odas buoy established in 07-02.67N 057-58.65W2024-03-21
Corocoro island lighthouse, fl 10 sec 30 meters 35 miles, established in 08-33.40N 059-59.75W2023-08-25
Odas buoys established in: a. 08-04.16N 057-04.51W2022-08-23
Punta barima light 08-35.1N 060-25.0W unreliable2019-10-24

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

Survey operations in progress until 31 dec by vessel aht DN87 and tug telesto in area bound by 07-03.06N…Surveys · 1 nm
Odas buoy established in 07-02.67N 057-58.65WNav aids · 7.6 nm
Barge trader III sank in 06-53.77N 057-53.43WWrecks · 10.4 nm
Two odas buoys established in vicinity 06-57.93N 057-48.54WNav aids · 14.8 nm
M/V barima sank in 07-28.23N 058-23.40WWrecks · 37.2 nm
Survey operations in progress until 16 nov by M/V seaquest in area bound by 07-57.54N 058-27.64W, 07-57.95N…Surveys · 38.1 nm
Survey operations in progress until 16 nov by M/V sea horse II in area bound by 07-57.54N 058-27.64W,…Surveys · 38.1 nm
Survey operations in progress until 15 nov by M/V moonrise g in area bound by 07-50.19N 058-24.50W,…Surveys · 39.7 nm
Survey operations in progress until 15 nov by M/V bgp prospector in area bound by 07-50.19N 058-24.50W,…Surveys · 39.7 nm
Underwater operations in progress until 31 dec by M/V c-worker 1 in area bound by 07-54.85N 057-06.47W,…Surveys · 90.2 nm
Survey operations in progress until 31 dec 26 by M/V fugro brasilis in area bound by: 08-00.00N 057-09.90W,…Surveys · 91.1 nm
Survey operations in progress until 31 dec 26 by vessel bos princess in area bound by 08-09.73N 057-09.73W,…Surveys · 95.1 nm

Worldwide in the collected sources

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

Record snapshot 2026-10-01 19:17Z; 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.