Cable ops

Pipeline operations are underway in the Sibuyan, South China, and Sulu Seas near the Philippines until further notice; wide berth requested.

Sulu Sea · HYDROPAC 894/24

What this record establishes

Cancelled notice · 2026-09-25 16:30Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates
NGA MSI in-force warnings (DailyMem*.txt) · NAVAREA XI 136/24 180000Z MAR 24.. Issued 2024-03-18 00:08Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-09-25 17:47Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Sulu Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Sulu Sea →

issued
2024-03-18 00:08Z
status
Cancelled notice
authority
NAVAREA XI 136/24 180000Z MAR 24.
NAVAREA
NAVAREA XI · named as the source of this relay
sea
Sulu Sea
position
12.270, 120.697
nearest port
Manila · 136 nm
source
NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z

Original warning text

SIBUYAN SEA.
SOUTH CHINA SEA.
SULU SEA.
PHILIPPINES.
DNC 11.
1. PIPELINE OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE IN VICINITY OF TRACKLINE JOINING
   11-38.57N 118-54.38E 11-37.75N 118-58.07E
   11-36.13N 119-00.28E 11-29.25N 119-09.63E
   11-40.18N 119-42.99E 11-37.71N 119-56.63E
   11-33.24N 120-06.25E 11-43.41N 120-26.00E
   11-47.18N 120-37.34E 12-08.67N 121-16.78E
   12-19.00N 121-32.46E 12-43.92N 121-42.06E
   13-00.61N 121-37.75E 13-08.31N 121-36.77E
   13-22.16N 121-20.65E 13-27.89N 121-13.39E
   13-26.91N 121-07.06E 13-34.51N 121-00.11E
   13-37.51N 121-00.48E 13-42.67N 121-03.05E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 425/24.

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.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.

All warning terms →

Collected reports in this area · cable & pipeline work

34 within 180 nm since 2002 · 2 in the last 12 months · 1 listed in force now

02
05
10
15
20
25
26

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

Worldwide in the collected sources

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-01 05:14Z; 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.