Other

A sand spit marked by a daymark near Baillie Island, Canada, has shifted along a trackline between 70-30.56N 128-20.88W and 70-30.10N 128-19.97W.

Beaufort Sea · HYDROARC 54/24

What this record establishes

Cancelled notice · 2026-08-14 18:10Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · NAVAREA XVII 20/24 120015Z APR 24.. Issued 2024-04-12 00:51Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-17 15:50Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Beaufort Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Beaufort Sea →

issued: 2024-04-12 00:51Z
status: Cancelled notice
authority: NAVAREA XVII 20/24 120015Z APR 24.
NAVAREA: NAVAREA XVII · named as the source of this relay
sea: Beaufort Sea
position: 70.505, -128.341
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z

Original warning text

BEAUFORT SEA.
CANADA.
DNC 27.
BAILLIE ISLAND SAND SPIT, MARKED BY DAYMARK,
SHIFTED ALONG TRACKLINE JOINING
70-30.56N 128-20.88W, 70-30.35N 128-20.74W,
70-30.10N 128-19.97W.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Track line joining: Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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.

All warning terms →

Collected reports in this area · other warnings

11 within 180 nm since 2015 · 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 other warnings listed in force · see all

Record snapshot 2026-10-01 13:27Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.