Nga chart 37166 (2ND ed)
North Sea · HYDROLANT 1331/11
What this record establishes
Archived notice · 2015-04-02 19:03Z
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 218/11 220000Z AUG 11.. Issued 2011-08-22 08:48Z. 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 56.468, 1.608. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 2011-08-22 08:48Z
- status
- Archived notice
- authority
- NAVAREA I 218/11 220000Z AUG 11.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Sea
- position
- 56.468, 1.608
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH SEA. NGA CHART 37166 (2ND ED). NGA CHART 43015 (12TH ED). NAVIGATION PROHIBITED WITHIN 500 METERS OF: A. 58-12.08N 001-25.58E. B. 57-35.93N 001-38.51E. C. 53-36.18N 001-45.32E.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Navigation prohibited
- Ships may not enter or pass through the area, or a port is closed to traffic.
- Within a radius of
- A circular area — every position within a stated distance of a point.
- 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.
Collected reports in this area · restricted areas & port closures
46 within 180 nm since 2004 · 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.
- 500 meter safety zone established in 58-47.36N 001-21.01E2022-12-05
- 500 meter safety zone established in 56-35.00N 002-28.40E2022-07-20
- Navigation prohibited in area within one mile of: a. 54-11.31N 002-12.56E2018-12-20
- Navigation prohibited within 500 meters of 56-46.21N 000-42.78E2016-06-30
- Navigation prohibited within 500 meters of 57-40.14N 000-25.30E2016-06-28
- Navigation prohibited within 500 meters of 57-42.94N 001-21.02E2016-04-01
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
2 restricted areas & port closures listed in force · see all
Record snapshot 2026-09-24 22:26Z; source collection times vary.
Restricted
Navigation prohibited, exclusion and security zones, ports closed to traffic. All current restricted areas & port closures →
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.