Other

All navigational aids at wind turbines inoperative: a. G1, 54-45.3N 003-44.6W

Irish Sea and St. George's Channel · HYDROLANT 959/15

What this record establishes

Archived notice · 2015-06-01 13:42Z

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 488/15 201405Z APR 15.. Issued 2015-04-21 20:31Z. 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 54.743, -3.726. 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 Irish Sea and St. George's Channel →

issued
2015-04-21 20:31Z
status
Archived notice
authority
WZ 488/15 201405Z APR 15.
issued by
WZ
sea
Irish Sea and St. George's Channel
position
54.743, -3.726
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

IRISH SEA.
DNC 20.
CHART 36025.
1. ALL NAVIGATIONAL AIDS AT WIND TURBINES INOPERATIVE:
   A. G1, 54-45.3N 003-44.6W.
   B. J6, 54-44.2N 003-42.1W.
   C. K1, 54-44.3N 003-43.9W.
2. CANCEL HYDROLANT 572/15.

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.
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.
Inoperative / unreliable / off air
An aid or radio service is not working as charted or published.
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 · other warnings

195 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

21 other warnings listed in force · see all

Record snapshot 2026-10-03 09:27Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.