Nav aids

Skerries lighthouse 53-25N 004-37W changed to: a. main light fl (2) w 15 sec 20 miles

Irish Sea and St. George's Channel · HYDROLANT 1279/04

What this record establishes

Archived notice · 2005-01-05 19:06Z

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) · NAVAREA I 279/04 011730Z AUG 04.. Issued 2004-08-01 18:31Z. 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 53.417, -4.617. 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 →

issued: 2004-08-01 18:31Z
status: Archived notice
authority: NAVAREA I 279/04 011730Z AUG 04.
NAVAREA: NAVAREA I · named as the source of this relay
sea: Irish Sea and St. George's Channel
position: 53.417, -4.617
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

CHART 36060 (17TH ED).
SKERRIES LIGHTHOUSE 53-25N 004-37W CHANGED TO:
A. MAIN LIGHT FL (2) W 15 SEC 20 MILES.
B. SECTOR LIGHT ISO R 4 SEC 10 MILES.
C. FOG SIGNAL HORN (2) 60 SEC.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
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.
Light characteristic: The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.

All warning terms →

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

1719 within 180 nm since 1997 · 6 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
Dubh artach light 56-08.0N 006-38.1W unreliable2026-09-17
Dubh artach light 56-08.00N 006-38.10W unreliable2026-09-16
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

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

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

Record snapshot 2026-10-04 01:17Z; 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.