Cable ops

Cable operations 02 thru 13 dec by cableship responder and M/V med surveyor along trackline joining…

Gulf of Guinea · HYDROLANT 3747/20

What this record establishes

Archived notice · 2020-12-14 00:01Z

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 376/20 012130Z DEC 20.. Issued 2020-12-01 21:32Z. 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: Gulf of Guinea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Gulf of Guinea →

issued: 2020-12-01 21:32Z
status: Archived notice
authority: NAVAREA II 376/20 012130Z DEC 20.
NAVAREA: NAVAREA II · named as the source of this relay
sea: Gulf of Guinea
position: 5.919, 1.502
vessel: M/V MED SURVEYOR · 2 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
TOGO.
DNC 01.
1. CABLE OPERATIONS 02 THRU 13 DEC BY
   CABLESHIP RESPONDER AND M/V MED SURVEYOR
   ALONG TRACKLINE JOINING
   06-12.45N 001-30.06E, 06-09.60N 001-30.32E,
   06-05.40N 001-31.09E, 05-57.53N 001-31.29E,
   05-51.90N 001-30.52E, 05-49.83N 001-29.59E,
   05-47.03N 001-28.65E, 05-44.91N 001-28.56E,
   05-41.12N 001-28.72E, 05-37.97N 001-29.47E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 14 DEC 20.

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.
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.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · cable & pipeline work

60 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

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-01 17:21Z; 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.