Survey operations in progress until further notice by M/V ramform sterling towing 8100 meter long cables in…
North Atlantic Ocean · NAVAREA IV 598/17
What this record establishes
Archived notice · 2018-04-02 13:28Z
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) · CANLANT 51/17 171634Z JUL 17.. Issued 2017-07-17 17:09Z. 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
- North Atlantic Ocean. 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
- Survey operations in progress until further notice by M/V ramform sterling towing 8100 meter long cables in…cancelled by this notice
- Cancel NAVAREA IV 1078/16, 578/17, 598/17, 921/17, 977/17, 1191/17 and this msglater cancellation notice
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2017-07-17 17:09Z
- status
- Archived notice
- authority
- CANLANT 51/17 171634Z JUL 17.
- NAVAREA
- NAVAREA IV
- issued by
- CANLANT
- sea
- North Atlantic Ocean
- position
- 47.488, -46.194
- vessel
- M/V RAMFORM STERLING · 24 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
WESTERN NORTH ATLANTIC. 1. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V RAMFORM STERLING TOWING 8100 METER LONG CABLES IN AREA BOUND BY 47-13.58N 046-26.36W, 47-35.00N 046-26.39W, 47-35.00N 046-21.40W, 47-46.41N 046-21.40W, 47-46.39N 045-58.41W, 47-13.52N 045-58.54W, 47-13.58N 046-26.36W. WIDE BERTH REQUESTED. 2. CANCEL NAVAREA IV 584/17.
Reading this warning
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- NAVAREA
- One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
Collected reports in this area · survey operations
27 within 180 nm since 2006 · 0 in the last 12 months · 0 listed in force now
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.
- Survey operations in progress until 18 july by M/V amazon conqueror towing 12 6000 meter long cables in area…2024-05-18
- Survey operations 30 jul until further notice by M/V ramform atlas towing 14 9260 meter long cables in area…2021-07-29
- Survey operations 17 jul until further notice by M/V ramform atlas towing 14 9260 meter long cables in area…2021-07-16
- Survey operations 08 jun until further notice by M/V ramform atlas towing 14 9260 meter long cables and M/V…2021-06-07
- Survey operations in progress until further notice by M/V ramform titan towing 16 9000 meter long cables,…2021-05-27
- Survey operations in progress until further notice by M/V ramform titan towing 16 9000 meter long cables,…2021-05-21
Month of issue in the collected archive
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
- Odas buoy established in 47-53.93N 046-47.74WNav aids · 34.6 nm
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-03 05:48Z; 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.