Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…
South Atlantic Ocean · HYDROLANT 2509/17
What this record establishes
Archived notice · 2017-08-28 22:14Z
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 VI 475/17 160451Z AUG 17.. Issued 2017-08-16 04:51Z. 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 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
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2017-08-16 04:51Z
- status
- Archived notice
- self-cancels
- 2017-10-01 00:01Z
- authority
- NAVAREA VI 475/17 160451Z AUG 17.
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -34.692, -50.676
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. URUGUAY. BRAZIL SOUTH COAST. DNC 01, DNC 07. 1. CABLE OPERATIONS IN PROGRESS UNTIL 302300Z SEP BY CABLESHIP ILE DE BREHAT IN AREA BOUND BY 34-58.0S 054-54.0W, 35-02.0S 054-50.4W, 35-09.1S 054-40.6W, 35-27.7S 053-49.0W, 35-36.6S 052-49.8W, 35-37.4S 052-43.7W, 35-40.5S 052-35.9W, 35-48.2S 052-16.9W, 35-52.1S 052-11.4W, 35-59.4S 050-21.9W, 36-03.5S 049-41.7W, 35-30.4S 049-06.0W, 35-08.1S 048-44.7W, 32-47.6S 047-06.0W. ONE MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 2494/17. 3. CANCEL THIS MSG 010001Z OCT 17.
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.
- 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.
- 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
497 within 180 nm since 2000 · 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 de sein along trackline joining 36-35.59S…2020-09-18
- Cable operations in progress until further notice by cableship ile de sein along trackline joining 35-54.40S…2020-09-02
- Cable operations in progress until 302300Z sep by cableship ile de brehat in area bound by 34-58.0S…2017-08-28
- Underwater operations in progress until 302359Z aug by cableship ile de brehat in: a. 36-03.5S 049-41.7W b.…2017-08-16
- Cable operations 150500Z aug to 302300Z sep by cableship ile de brehat in area bound by 34-58.0S 054-54.0W,…2017-08-14
- Seismic survey by M/V polarcus alima towing 12 8100 meter long cables along tracklines between: a. 24 jan…2017-01-24
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 2026-10-02 01:58Z; 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.