Nav aids

Nga chart 35134 (2ND ed)

North Atlantic Ocean · HYDROLANT 1186/07

What this record establishes

Archived notice · 2007-07-08 16:00Z

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 856/07 070252Z JUL 07.. Issued 2007-07-07 05:20Z. 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 Atlantic Ocean. The parsed report position is 52.560, -9.932. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued: 2007-07-07 05:20Z
status: Archived notice
self-cancels: 2007-07-08 16:00Z
authority: WZ 856/07 070252Z JUL 07.
issued by: WZ
sea: North Atlantic Ocean
position: 52.560, -9.932
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

NGA CHART 35134 (2ND ED).
1. DGPS STATION AT LOOP HEAD LIGHT 52-33.6N 009-55.9W
   UNRELIABLE 1000Z TO 1500Z DAILY 07 AND 08 JUL.
2. CANCEL THIS MSG 081600Z JUL.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
GNSS / GPS: Satellite positioning — GPS and other systems — and the testing, jamming and interference that make it unreliable in an area.
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.
Inoperative / unreliable / off air: An aid or radio service is not working as charted or published.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.
Date-time group (DTG): A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.

All warning terms →

Collected reports in this area · aids-to-navigation notices

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

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.

Balbriggan island light 53-36.80N 006-10.80W unreliable2024-09-25
South bishop light 51-51.20N 005-24.70W range temporarily reduced to nine miles2024-01-30
Odas buoy M2 53-28.00N 005-25.00W unlit2023-12-10
East kish buoy 53-14.30N 005-53.60W unlit2023-11-27
Youghal light 51-56.60N 007-50.50W unlit2023-11-11
Balbriggan island light 53-36.80N 006-10.90W unlit2023-09-22

Month of issue in the collected archive

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

146 aids-to-navigation notices listed in force · see all

Record snapshot 2026-09-24 23:13Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation 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.