Cable ops

Cable operations 300300Z nov to 130259Z feb 21 by cableship ile de brehat along trackline joining 03-44.36S…

South Atlantic Ocean · HYDROLANT 3729/20

What this record establishes

Archived notice · 2020-12-30 21:54Z

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 N 869/20 292142Z NOV 20.. Issued 2020-11-29 21:47Z. 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 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 South Atlantic Ocean →

Activity windows · 1 in this warning

opens (UTC)closes (UTC)locallength
2020-11-30 03:00Z2021-02-13 02:59Z—1799 h 59

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued
2020-11-29 21:47Z
status
Archived notice
self-cancels
2021-02-13 03:59Z
authority
NAVAREA V COASTAL N 869/20 292142Z NOV 20.
NAVAREA
NAVAREA V · named as the source of this relay
issued by
NAVAREA V COASTAL N
sea
South Atlantic Ocean
position
-2.639, -37.219
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-NORTH COAST.
DNC 01.
1. CABLE OPERATIONS 300300Z NOV TO
   130259Z FEB 21 BY CABLESHIP ILE DE BREHAT
   ALONG TRACKLINE JOINING
   03-44.36S 038-27.16W, 03-44.26S 038-25.06W,
   03-40.46S 038-16.48W, 03-37.35S 038-09.53W,
   03-36.70S 038-03.71W, 03-35.71S 037-58.70W,
   03-34.07S 037-56.18W, 03-29.15S 037-51.34W,
   03-15.02S 037-45.53W, 02-59.48S 037-28.49W,
   02-50.60S 037-16.72W, 02-22.59S 036-58.59W,
   02-00.90S 036-40.84W, 01-18.21S 036-08.25W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 130359Z FEB 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.
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.
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

360 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20

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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-09-27 22:31Z; 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.