Wrecks

A 23.8-meter shoal exists in Queen Maud Gulf, Canada at 68-58.95N 101-08.32W; previous warning canceled.

The Northwestern Passages · HYDROARC 207/21

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 84/21 022309Z SEP 21.. Issued 2021-09-02 23:18Z. 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 68.983, -101.139. 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 206/212021-09-01 · Archived notice
  3. HYDROARC 207/21 · this notice2021-09-02 · 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
2021-09-02 23:18Z
status
Cancelled notice
authority
NAVAREA XVIII 84/21 022309Z SEP 21.
NAVAREA
NAVAREA XVIII · named as the source of this relay
sea
The Northwestern Passages
position
68.983, -101.139
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:41Z

Original warning text

QUEEN MAUD GULF.
CANADA.
DNC 28.
1. 23.8 METER SHOAL IN 68-58.95N 101-08.32W.
2. CANCEL HYDROARC 206/21.

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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROARC
The U.S. long-range warning series for the Arctic Ocean.

All warning terms →

Collected reports in this area · wrecks & obstructions

27 within 180 nm since 2008 · 1 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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

37 wrecks & obstructions listed in force · see all

Record snapshot 2026-09-24 22:57Z; 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.