Surveys

Survey operations in progress until further notice by M/V ramform vanguard towing 12 8000 meter long cables…

Norwegian Sea · HYDROARC 184/19

What this record establishes

Archived notice · 2019-09-01 09:18Z

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 XIX 87/19 250733Z AUG 19.. Issued 2019-08-25 07:47Z. 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
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
2019-08-25 07:47Z
status
Archived notice
authority
NAVAREA XIX 87/19 250733Z AUG 19.
NAVAREA
NAVAREA XIX · named as the source of this relay
sea
Norwegian Sea
position
65.444, 9.044
vessel
M/V RAMFORM VANGUARD · 519 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 21.
SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY M/V RAMFORM VANGUARD TOWING 12 8000
METER LONG CABLES IN AREA BOUND BY
65-53.71N 008-59.99E, 65-45.23N 009-00.00E
65-44.04N 010-34.79E, 65-00.00N 010-00.00E,
65-00.00N 009-31.03E, 65-11.03N 009-30.99E,
65-11.24N 009-09.09E, 65-00.00N 009-03.09E,
65-00.02N 008-20.00E, 65-14.86N 008-19.72E,
65-14.90N 007-59.97E, 65-08.72N 007-59.94E,
65-08.71N 007-38.69E, 65-13.62N 007-43.97E,
65-37.89N 007-43.98E, 65-51.04N 008-14.92E,
65-53.93N 008-17.82E, 65-53.71N 008-59.99E.
SIX 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

53 within 180 nm since 2017 · 5 in the last 12 months · 1 listed in force now

17
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

55 survey operations listed in force · see all

Record snapshot 2026-09-27 22:42Z; 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.