Cable ops

Underwater operations in progress until 302359Z aug by cableship ile de brehat in: a. 36-03.5S 049-41.7W b.…

South Atlantic Ocean · HYDROLANT 2508/17

What this record establishes

Archived notice · 2017-08-16 12:15Z

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 V COASTAL S 650/17 160030Z AUG 17.. Issued 2017-08-16 00:42Z. 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 parsed report position is -34.873, -48.660. 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 Atlantic Ocean →

issued
2017-08-16 00:42Z
status
Archived notice
self-cancels
2017-08-31 00:59Z
authority
NAVAREA V COASTAL S 650/17 160030Z AUG 17.
NAVAREA
NAVAREA V · named as the source of this relay
issued by
NAVAREA V COASTAL S
sea
South Atlantic Ocean
position
-34.873, -48.660
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTH COAST.
DNC 01.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 302359Z AUG
   BY CABLESHIP ILE DE BREHAT IN:
   A. 36-03.5S 049-41.7W
   B. 35-30.4S 049-06.0W
   C. 35-08.1S 048-44.7W
   D. 32-47.6S 047-06.0W
2. CANCEL THIS MSG 310059Z AUG 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.
Underwater operations
Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
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.
Cable operations
A ship is laying, burying or repairing a submarine cable, usually along a stated route.
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.
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

291 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

00
05
10
15
17

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

J
F
M
A
M
J
J
A
S
O
N
D

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 02:31Z; 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.