Seismic survey in progress until further notice by M/V bos atlantic towing 9500 meter long cable in area…
Beaufort Sea · HYDROARC 55/10
What this record establishes
Archived notice · 2010-10-10 11:44Z
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 XVIII 55/10 101101Z AUG 10.. Issued 2010-08-10 12:42Z. 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
- Beaufort 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
- Dsc station iqaluit inoperativecancelled by this notice
- Cancel HYDROARC 55/10 and this msg, survey completedlater cancellation notice
- issued
- 2010-08-10 12:42Z
- status
- Archived notice
- authority
- NAVAREA XVIII 55/10 101101Z AUG 10.
- NAVAREA
- NAVAREA XVIII · named as the source of this relay
- sea
- Beaufort Sea
- position
- 73.682, -129.916
- vessel
- M/V BOS ATLANTIC · 2 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. BEAUFORT SEA. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V BOS ATLANTIC TOWING 9500 METER LONG CABLE IN AREA BOUND BY 77-30N 119-16W, 78-00N 130-00W, 72-30N 133-30W, 71-30N 141-30W, 69-55N 141-55W, 69-40N 138-05W, 70-51N 127-10W, 74-20N 125-20W, 75-08N 117-17W, 75-55N 123-12W, 76-22N 123-14W, 77-30N 119-16W. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROARC 53/10, STATION RESTORED.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- 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.
- HYDROARC
- The U.S. long-range warning series for the Arctic Ocean.
Collected reports in this area · cable & pipeline work
1 within 180 nm since 2010 · 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.
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-09-25 01:50Z; 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.