Surveys

Survey operations in progress until further notice by M/V amazon warrior towing 12 8000 meter long cables,…

Norwegian Sea · HYDROARC 47/23

What this record establishes

Archived notice · 2023-04-15 06:32Z

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 I 55/23 141502Z APR 23.. Issued 2023-04-14 19:14Z. 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
Norwegian Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Norwegian Sea →

issued
2023-04-14 19:14Z
status
Archived notice
authority
NAVAREA I 55/23 141502Z APR 23.
NAVAREA
NAVAREA I · named as the source of this relay
sea
Norwegian Sea
position
64.096, 3.683
vessels
M/V AMAZON WARRIOR · 67 messagesM/V SHANNON · 5 messagesM/V VOS APOLLO · 25 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NORWEGIAN SEA.
NORWAY.
DNC 20, DNC 21.
SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY M/V AMAZON WARRIOR TOWING 12 8000
METER LONG CABLES, M/V VOS APOLLO AND
M/V SHANNON IN AREA BOUND BY
62-29.00N 002-43.00E, 69-29.00N 004-28.00E,
61-14.00N 004-48.00E, 61-48.00N 004-36.00E,
61-47.00N 000-36.00E, 62-17.00N 000-33.00E,
62-19.00N 002-43.00E.
SEVEN 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.
Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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 · survey operations

71 within 180 nm since 2008 · 2 in the last 12 months · 1 listed in force now

08
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

56 survey operations listed in force · see all

Record snapshot 2026-10-01 16:37Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.