Restricted

Navigation prohibited until further notice within one mile of horseshoe north cardinal buoy 51-15.1N 004-13.0W

Bristol Channel · HYDROLANT 1155/03

What this record establishes

Archived notice · 2003-06-27 15:00Z

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 761/03 121841Z JUN 03. Issued 2003-06-12 21:59Z. 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
Bristol Channel. The parsed report position is 51.252, -4.217 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

Current notices and reporting history in the Bristol Channel →

issued
2003-06-12 21:59Z
status
Archived notice
authority
WZ 761/03 121841Z JUN 03
issued by
WZ
sea
Bristol Channel
position
51.252, -4.217 · r 1.0 nm
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CHART 36165 (6TH ED).
NAVIGATION PROHIBITED UNTIL FURTHER NOTICE
WITHIN ONE MILE OF HORSESHOE NORTH CARDINAL BUOY
51-15.1N 004-13.0W.

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.

All warning terms →

Collected reports in this area · restricted areas & port closures

9 within 180 nm since 2003 · 0 in the last 12 months · 0 listed in force now

03
05
10
15
16

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

2 restricted areas & port closures listed in force · see all

Record snapshot 2026-09-24 22:22Z; source collection times vary.

Restricted

Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →

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.