Portugal DNC 08
North Atlantic Ocean · HYDROLANT 3642/18
What this record establishes
Archived notice · 2018-11-25 14:19Z
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 469/18 231146Z NOV 18.. Issued 2018-11-23 15:22Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Portugal DNC 08cancelled by this notice
- Portugal DNC 08later cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2018-11-23 15:22Z
- status
- Archived notice
- authority
- NAVAREA II 469/18 231146Z NOV 18.
- NAVAREA
- NAVAREA II · named as the source of this relay
- sea
- North Atlantic Ocean
- position
- 35.465, -8.531
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. PORTUGAL DNC 08. 1. CABLE OPERATIONS 231300Z NOV UNTIL FURTHER NOTICE BY CABLESHIP LAYLA IN AREA BOUND BY 35-35N 008-24W, 35-35N 008-17W, 35-32N 008-16W, 35-30N 008-27W, 35-17N 008-44W, 35-19N 008-47W, 35-33N 008-31W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 3542/18.
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.
- 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.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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
198 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.
- Pipeline operations in progress until further notice by M/V edda flora along trackline joining 36-00.40N…2024-02-10
- Pipeline operations 08 feb until further notice by M/V edda flora with submersible in area bound by…2024-02-05
- Pipeline operations in progress until further notice by M/V edda flora along trackline joining 35-51.50N…2024-01-16
- Pipeline operations in progress until further notice by M/V edda flora along trackline joining 35-45.10N…2024-01-15
- Pipeline operations in progress until further notice by M/V edda flora along trackline joining 36-05.35N…2024-01-12
- Pipeline operations 08 jan until further notice by M/V edda flora along trackline joining 36-00.20N…2024-01-05
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
- Derelict vessel adriftDerelicts · 82.5 nm
Worldwide in the collected sources
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-01 02:40Z; 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.