Nav aids
Dgps service at sumburgh head light 59-51N 001-16W unreliable 271300Z to 271700Z apr
HYDROLANT 836/99
- issued
- 1999-04-27 06:50Z
- status
- cancelled 1999-04-27 00:00Z (archive)
- self-cancels
- 1999-04-27 18:00Z
- sea
- North Sea
- position
- 59.850, -1.267
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
CHART 35166 (4TH ED). 1. DGPS SERVICE AT SUMBURGH HEAD LIGHT 59-51N 001-16W UNRELIABLE 271300Z TO 271700Z APR. 2. CANCEL THIS MSG 271800Z APR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-04-27 13:00Z | 1999-04-27 17:00Z | — | 4 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · aids-to-navigation notices
1340 within 180 nm since 1998 · 1 in the last 12 months · 1 in force now
98
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26
- 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
Season · when aids-to-navigation notices happen here
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A
M
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month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
193 aids-to-navigation notices in force · see all
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.