Wrecks

Nga chart 36000 (1ST ed)

Irish Sea and St. George's Channel · HYDROLANT 2019/11

What this record establishes

Archived notice · 2012-02-20 12:23Z

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) · WZ 1237/11 281735Z NOV 11.. Issued 2011-11-28 22:03Z. 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
Irish Sea and St. George's Channel. The parsed report position is 52.868, -5.084 with a 1.0 nm radius. 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. HYDROLANT 2019/11 · this notice2011-11-28 · Archived notice
  2. HYDROLANT 395/122012-02-20 · Archived notice
Compare all 2 notices, changes and original texts →

Current notices and reporting history in the Irish Sea and St. George's Channel →

issued
2011-11-28 22:03Z
status
Archived notice
authority
WZ 1237/11 281735Z NOV 11.
issued by
WZ
sea
Irish Sea and St. George's Channel
position
52.868, -5.084 · r 1.0 nm
vessel
M/V SWANLAND · 2 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

SAINT GEORGES CHANNEL.
NGA CHART 36000 (1ST ED).
NAVIGATION PROHIBITED UNTIL FURTHER NOTICE
WITHIN ONE MILE OF 52-52.06N 005-05.03W
DUE TO M/V SWANLAND AGROUND.
FOR FURTHER INFORMATION CONCTACT MRCC HOLYHEAD.

Reading this warning

Chart reference
The number of the nautical chart on which the reported position lies.
Navigation prohibited
Ships may not enter or pass through the area, or a port is closed to traffic.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Within a radius of
A circular area — every position within a stated distance of a point.
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.
MRCC (Maritime Rescue Coordination Centre)
A rescue coordination centre for maritime cases only, such as MRCC Fort-de-France or MRCC Vietnam.

All warning terms →

Collected reports in this area · wrecks & obstructions

93 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
24

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

38 wrecks & obstructions listed in force · see all

Record snapshot 2026-10-03 14:28Z; 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.