Cable ops

Cable operations are in progress by the cableship Detector along a trackline in the Celtic Sea and English Channel; wide berth requested.

Celtic Sea · HYDROLANT 928/24

What this record establishes

Cancelled notice · 2026-08-14 18:10Z

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 broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA I 66/24 010705Z MAY 24.. Issued 2024-05-01 08:38Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-17 15:50Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Celtic 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 Celtic Sea →

issued
2024-05-01 08:38Z
status
Cancelled notice
authority
NAVAREA I 66/24 010705Z MAY 24.
NAVAREA
NAVAREA I · named as the source of this relay
sea
Celtic Sea
position
50.095, -6.836
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z

Original warning text

CELTIC SEA.
ENGLISH CHANNEL.
ENGLAND.
DNC 19, DNC 20.
1. CABLE OPERATIONS IN PROGRESS UNTIL
   FURTHER NOTICE BY CABLESHIP DETECTOR
   ALONG TRACKLINE JOINING
   51-18.40N 007-39.00W, 50-33.00N 007-15.00W,
   49-52.20N 006-52.40W, 49-43.40N 006-47.70W,
   49-38.50N 006-35.20W, 49-33.60N 006-28.00W,
   49-22.60N 006-02.30W, 49-11.80N 005-43.10W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 927/24, MSG NOT
   PROMULGATED.

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.
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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.

All warning terms →

Collected reports in this area · cable & pipeline work

735 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
05
10
15
20
24

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 2026-10-01 11:07Z; 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.