Nav aids

Nga chart 36025 (1ST ed)

Irish Sea and St. George's Channel · HYDROLANT 1110/10

What this record establishes

Archived notice · 2010-06-17 17:00Z

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 679/10 142018Z JUN 10.. Issued 2010-06-14 21:07Z. 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 53.417, -4.288. 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 Irish Sea and St. George's Channel →

Activity windows · 3 in this warning

opens (UTC)	closes (UTC)	local	length
2010-06-15 08:00Z	2010-06-15 16:00Z	—	8 h
2010-06-16 08:00Z	2010-06-16 16:00Z	—	8 h
2010-06-17 08:00Z	2010-06-17 16:00Z	—	8 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

issued: 2010-06-14 21:07Z
status: Archived notice
self-cancels: 2010-06-17 17:00Z
authority: WZ 679/10 142018Z JUN 10.
issued by: WZ
sea: Irish Sea and St. George's Channel
position: 53.417, -4.288
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WALES-NORTHWEST COAST.
NGA CHART 36025 (1ST ED).
1. DGPS STATION AT POINT LYNAS LIGHT 53-25.0N 004-17.3W
   OFF AIR 0800Z TO 1600Z DAILY 15 THRU 17 JUN.
2. CANCEL THIS MSG 171700Z JUN.

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

1703 within 180 nm since 1997 · 4 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.

Bull point light in 51-12.00N 004-12.10W unreliable2026-09-24
Roker pier light 54-55.30N 001-21.20W unreliable2026-09-05
Mew island light 54-41.90N 005-30.80W unreliable2026-08-11
Mf dsc and r/t services off air at: a. bawdsey 51-59.60N 001-24.50E2026-08-01
NAVTEX station portpatrick (o) 54-50.63N 005-07.46W off air 020800Z to 031600Z oct2024-10-01
Balbriggan island light 53-36.80N 006-10.80W unreliable2024-09-25

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

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

Record snapshot 2026-09-28 09:03Z; 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.