Nga chart 15880 (0 ed)
The Northwestern Passages · HYDROARC 66/10
What this record establishes
Archived notice · 2010-10-15 12:32Z
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 XVIII 66/10 182307Z AUG 10.. Issued 2010-08-19 03:36Z. 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
- The Northwestern Passages. The parsed report position is 68.573, -97.672. 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 66/10 and this msg, mooring removedlater cancellation notice
Current notices and reporting history in the The Northwestern Passages →
- issued
- 2010-08-19 03:36Z
- status
- Archived notice
- authority
- NAVAREA XVIII 66/10 182307Z AUG 10.
- NAVAREA
- NAVAREA XVIII · named as the source of this relay
- sea
- The Northwestern Passages
- position
- 68.573, -97.672
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CANADA-NORTH COAST. SIMPSON STRAIT. NGA CHART 15880 (0 ED). SCIENTIFIC MOORING TEMPORARILY ESTABLISHED IN 68-34.37N 097-40.33W.
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
24 within 180 nm since 2008 · 7 in the last 12 months · 2 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.
- Scientific mooring established in in 68-55.72N 105-48.26W, least depth 20 meters2026-09-26
- Scientific mooring established in 68-55.94N 105-49.66W, top float 122 meters2026-09-25
- Scientific mooring established in 68-55.72N 105-48.26W, top float 127 meters2026-09-25
- Scientific mooring established in 68-48.95N 105-06.53W, top float 69 meters2026-09-25
- Scientific mooring established in 68-39.93N 103-00.86W, top float 126 meters2026-09-24
- Scientific mooring established in 68-53.41N 101-31.15W, top float 49 meters2026-09-24
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 2026-10-04 01:16Z; 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.