Sumburgh head dgps station 59-51N 001-16W at reduced power 110830Z to 141100Z sep
North Sea · HYDROLANT 2447/01
What this record establishes
Archived notice · 2001-09-13 17:35Z
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 1836/01 110637Z SEP 01. Issued 2001-09-11 07:32Z. 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 Sea. The parsed report position is 59.850, -1.267. 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
- Derelict F/V on fire and adrift vicinity 53-48N 004-54W at 131345Z seplater cancellation notice
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-09-11 08:30Z | 2001-09-14 11:00Z | — | 74 h 30 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
- issued
- 2001-09-11 07:32Z
- status
- Archived notice
- self-cancels
- 2001-09-14 12:00Z
- authority
- WZ 1836/01 110637Z SEP 01
- issued by
- WZ
- sea
- North Sea
- position
- 59.850, -1.267
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CHART 35166 (4TH ED). 1. SUMBURGH HEAD DGPS STATION 59-51N 001-16W AT REDUCED POWER 110830Z TO 141100Z SEP. 2. CANCEL THIS MSG 141200Z SEP.
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.
- 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
1340 within 180 nm since 1998 · 1 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.
- Noup head light 59-19.90N 003-04.20W range reduced to 12 miles2026-08-05
- All navigational aids at platform 15/17-A 58-25.00N 000-20.10E inoperative2024-05-01
- Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air2024-04-01
- Copinsay light 58-53.80N 002-40.20W unreliable2024-02-17
- Cgoc shetland mf dsc services at st margarets hope 58-46.9N 002-56.7W off air2024-01-27
- Mrcc shetland mf r/t and dsc services at collafirth hill site 60-32.00N 001-23.50W off air2024-01-25
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
134 aids-to-navigation notices listed in force · see all
Record snapshot 2026-10-04 05:11Z; 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.