Bottom scientific mooring, extending seven meters above sea floor, established until 31 oct 18 in 62-56.70N…
Hudson Strait · NAVAREA IV 977/17
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) · NOTSHIP A 170/17 161548Z OCT 17.. Issued 2017-10-16 16:54Z. 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
- Hudson Strait. The parsed report position is 62.945, -74.677. 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 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 Hudson Strait →
- issued
- 2017-10-16 16:54Z
- status
- Archived notice
- authority
- NOTSHIP A 170/17 161548Z OCT 17.
- NAVAREA
- NAVAREA IV
- issued by
- NOTSHIP A
- sea
- Hudson Strait
- position
- 62.945, -74.677
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
HUDSON STRAIT. CANADA. CHART 15003. 1. BOTTOM SCIENTIFIC MOORING, EXTENDING SEVEN METERS ABOVE SEA FLOOR, ESTABLISHED UNTIL 31 OCT 18 IN 62-56.70N 074-40.59W. 2. CANCEL THIS MSG 01 NOV 18.
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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
1 within 180 nm since 2017 · 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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 04:21Z; 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.