Wrecks

A 13.9 meter shoal is located in Lancaster Sound, Canada at 73 degrees 43 minutes north, 81 degrees 13 minutes west.

The Northwestern Passages · HYDROARC 272/23

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 XVIII 101/23 262301Z OCT 23.. Issued 2023-10-27 01:34Z. 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: The Northwestern Passages. The parsed report position is 73.724, -81.227. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the The Northwestern Passages →

issued: 2023-10-27 01:34Z
status: Cancelled notice
authority: NAVAREA XVIII 101/23 262301Z OCT 23.
NAVAREA: NAVAREA XVIII · named as the source of this relay
sea: The Northwestern Passages
position: 73.724, -81.227
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z

Original warning text

LANCASTER SOUND.
CANADA.
DNC 28.
13.9 METER SHOAL IN 73-43.41N 081-13.62W.

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.
Shoal / reported depth: Water shallower than the chart shows — a newly found shoal, a reported depth, or less water than charted.
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 · wrecks & obstructions

5 within 180 nm since 2008 · 0 in the last 12 months · 1 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.

13.6 meter depth reported in 74-38.63N 091-20.54W2025-08-31
Four persons stranded ashore requesting assistance vicinity 73-00N 080-00W2016-09-14
Nga chart 15641 (0 ed)2010-07-03
Nga chart 15630 (1ST ed)2008-11-25

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

38 wrecks & obstructions listed in force · see all

Record snapshot 2026-10-01 09:19Z; source collection times vary.

Wrecks

Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →

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.