Wrecks

27.8 meter shoal in 68-58.9N 101-08.3W

The Northwestern Passages · HYDROARC 206/21

What this record establishes

Archived notice · 2021-09-02 23:18Z

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 83/21 010219Z SEP 21.. Issued 2021-09-01 03:06Z. 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 68.982, -101.138. 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

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. HYDROARC 205/212021-08-31 · Archived notice
  2. HYDROARC 206/21 · this notice2021-09-01 · Archived notice
  3. HYDROARC 207/212021-09-02 · Cancelled notice
  4. HYDROARC 208/212021-09-02 · Cancelled notice
Compare all 4 notices, changes and original texts →

Current notices and reporting history in the The Northwestern Passages →

issued
2021-09-01 03:06Z
status
Archived notice
authority
NAVAREA XVIII 83/21 010219Z SEP 21.
NAVAREA
NAVAREA XVIII · named as the source of this relay
sea
The Northwestern Passages
position
68.982, -101.138
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

QUEEN MAUD GULF.
CANADA.
DNC 28.
27.8 METER SHOAL IN 68-58.9N 101-08.3W.

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

27 within 180 nm since 2008 · 0 in the last 12 months · 1 listed in force now

08
10
15
20
25

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

J
F
M
A
M
J
J
A
S
O
N
D

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

Worldwide in the collected sources

38 wrecks & obstructions listed in force · see all

Record snapshot 2026-10-01 21:31Z; 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.