Australia-northwest Coast
Indian Ocean · HYDROPAC 3221/13
What this record establishes
Archived notice · 2013-10-19 07:27Z
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) · AUSCOAST 252/13 190113Z OCT 13.. Issued 2013-10-19 01:44Z. 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
- Indian Ocean. The parsed report position is -20.707, 116.773. 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
- issued
- 2013-10-19 01:44Z
- status
- Archived notice
- authority
- AUSCOAST 252/13 190113Z OCT 13.
- issued by
- AUSCOAST
- sea
- Indian Ocean
- position
- -20.707, 116.773
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
AUSTRALIA-NORTHWEST COAST. CHART 74510 KARRATHA DGPS STATION 20-42.4S 116-46.4E INOPERATIVE.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- GNSS / GPS
- Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
- 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.
- Inoperative / unreliable / off air
- An aid or radio service is not working as charted or published.
Collected reports in this area · aids-to-navigation notices
239 within 180 nm since 1998 · 3 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.
- Port walcott C2 buoy light in position 20-25.89S 117-23.31E unreliable2026-09-28
- Eight buoys, yellow, fl w 7 sec, four meters in height, established in area within one mile of 19-45.73S…2026-02-27
- Eight buoys, yellow, fl w 7 sec, four meters in height, established in area within one mile of 19-57.09S…2025-12-22
- North west cape light 21-48.40S 114-09.60E2024-11-11
- RACON at port hedland C1 light in 19-59.49S 118-26.17E inoperative2023-05-24
- North west cape light 21-48.40S 114-09.60E unlit2023-05-16
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
- Special purpose vessel fugro kwilena / MLOV8 / 503147420 conducting underwater operations in an area bounded…Surveys · 61.1 nm
- Special purpose vessel ve constructor / H9YT / 373335000 conducting underwater operations in an area bounded…Surveys · 86.2 nm
- Underwater operations in progress until further notice by vessel ve constructor in area bound by 19-12.00S…Surveys · 86.2 nm
- Special purpose vessel nexans aurora / LALC8 / 257682000 conducting cable laying operations from 19 52.44S…Cable ops · 102.6 nm
Worldwide in the collected sources
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-03 08:50Z; 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.