Beaufort Sea
Beaufort Sea · HYDROARC 56/10
What this record establishes
Archived notice · 2017-04-07 12:27Z
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 XVII 56/10 082315Z AUG 10.. Issued 2010-08-11 00:41Z. 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 parsed report position is 73.465, -136.997. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROARC 56/10, 102/10, 158/14 and this msglater cancellation notice
- issued
- 2010-08-11 00:41Z
- status
- Archived notice
- authority
- NAVAREA XVII 56/10 082315Z AUG 10.
- NAVAREA
- NAVAREA XVII · named as the source of this relay
- sea
- Beaufort Sea
- position
- 73.465, -136.997
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. BEAUFORT SEA. CHART 15926 SCIENTIFIC MOORING, AT DEPTH 50 METERS, ESTABLISHED IN 73-27.88N 136-59.82W.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- 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.
Collected reports in this area · survey operations
25 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.
- Sub-surface scientific moorings established in 71-00.13N 135-29.44W2019-12-04
- Scientific mooring, top float 60 meters, established in 73-54.07N 129-21.23W2017-09-28
- Scientific moorings, at depth 183 meters and attached by 530 meter long line, established in: a. 70-52.18N…2015-10-02
- Scientific mooring, at depth 214 meters, established in 71-01.00N 133-48.51W2015-09-27
- Beaufort Sea2012-10-04
- Nga chart 16003 (17TH ed)2010-07-08
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
56 survey operations listed in force · see all
Record snapshot 2026-10-02 19:00Z; 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.