Structures

Nga chart 37059 (0 ed)

North Sea · HYDROLANT 234/11

What this record establishes

Archived notice · 2011-07-02 08:58Z

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 184/11 081320Z FEB 11.. Issued 2011-02-08 15:17Z. 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
North Sea. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the North Sea →

issued
2011-02-08 15:17Z
status
Archived notice
authority
WZ 184/11 081320Z FEB 11.
issued by
WZ
sea
North Sea
position
53.195, 0.491
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ENGLAND-EAST COAST.
NGA CHART 37059 (0 ED).
1. WIND FARM UNDER CONSTRUCTION UNTIL FURTHER
   NOTICE, MARKED BY BUOYS IN AREA BOUND BY
   53-15.17N 000-30.35E, 53-13.80N 000-30.94E,
   53-12.45N 000-31.46E, 53-10.97N 000-31.50E,
   53-09.07N 000-31.49E, 53-07.54N 000-29.79E,
   53-09.45N 000-28.05E, 53-14.67N 000-27.02E.
2. CANCEL HYDROLANT 227/11 AND 229/11.

Reading this warning

Chart reference
The number of the nautical chart on which the reported position lies.
Offshore wind farm
Construction or maintenance at an offshore wind farm: turbine foundations, jack-up vessels and export cables.
Until further notice
The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
HYDROLANT
The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.

All warning terms →

Collected reports in this area · offshore structure notices

25 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now

98
00
05
10
15
20
23

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 offshore structure notices listed in force · see all

Record snapshot 2026-10-02 22:08Z; source collection times vary.

Structures

Platforms, wind turbines and fish farms established, under construction or removed. All current offshore structure notices →

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.