Cable operations in progress until further notice by cableship ile de brehat in vicinity of tracklines…
North Atlantic Ocean · HYDROLANT 783/21
What this record establishes
Archived notice · 2021-03-31 23:01Z
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) · NAVAREA II 121/21 191615Z MAR 21.. Issued 2021-03-19 17:03Z. 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 map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2021-03-19 17:03Z
- status
- Archived notice
- authority
- NAVAREA II 121/21 191615Z MAR 21.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 23.894, -17.046
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC.
WESTERN SAHARA.
DNC 01.
1. CABLE OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY CABLESHIP ILE DE BREHAT IN VICINITY
OF TRACKLINES JOINING:
A. 24-21.5N 016-58.0W, 24-18.5N 016-49.5W,
23-42.0N 015-59.0W.
B. 23-28.2N 018-04.7W, 23-27.8N 017-37.4W,
23-31.5N 017-29.3W, 24-24.9N 017-07.1W.
WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 780/21.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Cable operations
- A ship is laying, burying or repairing a submarine cable, usually along a stated route.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · cable & pipeline work
35 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.
- Cable operations in progress until further notice by cableship ile d'ouessant in area bound by 23-56.90N…2024-04-12
- Cable operations 09 mar until further notice by cableship ile d'ouessant in area bound by 23-50.50N…2024-03-06
- Cable operations 01 mar thru 15 apr by cableship ile d'ouessant in area bound by 23-50.50N 016-09.50W,…2024-02-27
- Cable operations 241200Z nov until further notice by M/V ile de batz along trackline joining 30-33.60N…2023-11-23
- Cable operations 250001Z nov until further notice by M/V ile de batz along trackline joining 20-05.60N…2023-11-22
- Cable operations 100001Z oct thru 152359Z nov by cableship cable vigilance in area bound by 23-59.20N…2023-10-09
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
- Newly discovered dangersWrecks · 66.7 nm
Worldwide in the collected sources
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 04:42Z; 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.