Cable ops

Cable operations 280500Z may until further notice by M/V hydna along trackline joining 37-44.5N 024-05.0E,…

Aegean Sea · HYDROLANT 1785/20

What this record establishes

Archived notice · 2020-06-09 19:16Z

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 III 807/20 271144Z MAY 20.. Issued 2020-05-27 12:00Z. 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
Aegean 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 Aegean Sea →

issued
2020-05-27 12:00Z
status
Archived notice
authority
NAVAREA III 807/20 271144Z MAY 20.
NAVAREA
NAVAREA III · named as the source of this relay
sea
Aegean Sea
position
37.218, 24.335
vessel
M/V HYDNA
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

AEGEAN SEA.
DNC 09.
CABLE OPERATIONS 280500Z MAY UNTIL FURTHER NOTICE
BY M/V HYDNA ALONG TRACKLINE JOINING
37-44.5N 024-05.0E, 37-34.9N 024-06.3E,
37-26.5N 024-13.3E, 37-17.9N 024-16.2E,
37-07.3N 024-18.3E, 37-02.7N 024-25.0E,
37-07.8N 024-31.7E, 37-00.3N 024-33.0E,
36-54.5N 024-28.6E, 36-45.3N 024-29.0E.
TWO MILE BERTH REQUESTED.

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.
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.

All warning terms →

Collected reports in this area · cable & pipeline work

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

98
00
05
10
15
20
21

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

23 cable & pipeline work listed in force · see all

Record snapshot 2026-10-03 00:33Z; 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.