Submarine cable operations 251200Z feb to 071200Z mar by cableship vercors within five miles of: a. 17-55.7N…
South China Sea · HYDROPAC 148/99
What this record establishes
Archived notice · 1999-03-07 00:00Z
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). Issued 1999-02-23 08:40Z. 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 17.931, 116.293. 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
Current notices and reporting history in the South China Sea →
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-02-25 12:00Z | 1999-03-07 12:00Z | — | 240 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 1999-02-23 08:40Z
- status
- Archived notice
- self-cancels
- 1999-03-07 13:00Z
- sea
- South China Sea
- position
- 17.931, 116.293
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SUBMARINE CABLE OPERATIONS 251200Z FEB TO 071200Z MAR BY CABLESHIP VERCORS WITHIN FIVE MILES OF: A. 17-55.7N 116-17.6E. B. 17-56.0N 116-17.5E. 2. CANCEL HYDROPAC 136/99(71). 3. CANCEL THIS MSG 071300Z MAR.
Reading this warning
- Cable operations
- A ship is laying, burying or repairing a submarine cable, usually along a stated route.
- 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.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · cable & pipeline work
28 within 180 nm since 1998 · 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.
- Cable operations 29 jan until further notice by cableship fu hai along trackline joining 18-22.26N…2024-01-28
- Cable operations 11 to 21 nov by cableship lodbrog in area within six miles of 18-10.7N 119-17.1E2019-11-11
- Cable operations 010200Z to 082359Z may by cableship lodbrog in area bound by 20-09.8N 114-10.7E, 20-09.9N…2019-04-30
- Cable operations 310800Z to 102359Z apr by cableship lodbrog in area bound by 17-32.3N 117-54.1E, 17-27.5N…2019-03-30
- Cable repair operations in progress until 04 apr by cableship cable retriever in area bound by 18-14.8N…2016-03-07
- Seismic survey in progress until 30 jun by M/V towing ten 6000 meter long cables in area bound by 19-55.4N…2014-06-10
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-01 23:39Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.