Dgps service at loop head light 52-34N 009-56W unreliable until 101800Z feb
North Atlantic Ocean · HYDROLANT 301/99
What this record establishes
Archived notice · 1999-02-09 00:00Z
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). Issued 1999-02-09 09:40Z. 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 52.567, -9.933. 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 North Atlantic Ocean →
- issued
- 1999-02-09 09:40Z
- status
- Archived notice
- self-cancels
- 1999-02-10 19:00Z
- sea
- North Atlantic Ocean
- position
- 52.567, -9.933
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CHART 35380 (8TH ED). 1. DGPS SERVICE AT LOOP HEAD LIGHT 52-34N 009-56W UNRELIABLE UNTIL 101800Z FEB. 2. CANCEL THIS MSG 101900Z FEB.
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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
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
140 aids-to-navigation notices listed in force · see all
Record snapshot 2026-09-28 00:58Z; 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.