Port walcott C1 buoy 20-23.5N 117-25.8E off station and RACON temporarily discontinued
South China Sea · HYDROPAC 59/00
What this record establishes
Archived notice · 2000-02-07 07:50Z
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 010/00 120824Z JAN 00, 011/00 120827Z JAN 00 NAVAREA XI 025/00; AUSCOAST 120817Z JAN 00. Issued 2000-01-12 09:50Z. 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 China Sea. The parsed report position is 20.392, 117.430. 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
- Underwater cable operations in progress until further notice by cableship fu lai in area between 15-00N…cancelled by this notice
- Port walcott C1 buoy 20-23.5N 117-25.8E off stationcancelled by this notice
- Cable laying operations in progress until further notice by cableship vercors along trackline between 30-18S…later cancellation notice
Current notices and reporting history in the South China Sea →
- issued
- 2000-01-12 09:50Z
- status
- Archived notice
- authority
- AUSCOAST 010/00 120824Z JAN 00, 011/00 120827Z JAN 00 NAVAREA XI 025/00; AUSCOAST 120817Z JAN 00
- NAVAREA
- NAVAREA XI · named as the source of this relay
- issued by
- AUSCOAST
- sea
- South China Sea
- position
- 20.392, 117.430
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CHART 74493 (3RD ED). 1. PORT WALCOTT C1 BUOY 20-23.5N 117-25.8E OFF STATION AND RACON TEMPORARILY DISCONTINUED. 2. CANCEL HYDROPAC 22/00(91), OPERATIONS COMPLETED. 3. CANCEL HYDROPAC 1451/99.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- 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.
- Off station / missing buoy
- A buoy that is not in its charted position — dragged, damaged, missing or removed.
- RACON (radar beacon)
- A radar beacon on a buoy, lighthouse or structure that answers a ship's radar with a Morse-code mark on the screen.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROPAC
- The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
Collected reports in this area · aids-to-navigation notices
2 within 180 nm since 1999 · 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.
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
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-03 11:51Z; 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.