North Sea
North Sea · HYDROLANT 641/12
What this record establishes
Archived notice · 2017-01-27 19:01Z
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 59/12 221311Z MAR 12.. Issued 2012-03-22 17:02Z. 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 57.806, 1.835 with a 0.3 nm radius. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 2012-03-22 17:02Z
- status
- Archived notice
- authority
- NAVAREA I 59/12 221311Z MAR 12.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Sea
- position
- 57.806, 1.835 · r 0.3 nm
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH SEA. CHART 35005 NAVIGATION PROHIBITED WITHIN 500 METERS OF 57-48.38N 001-50.10E.
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
51 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 until further notice unless authorized by national maritime operations center or…2018-07-24
- Navigation prohibited until further notice unless authorized by national maritime operations centre or…2018-07-19
- Navigation prohibited within 500 meters of 56-46.21N 000-42.78E2016-06-30
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 2026-10-01 23:54Z; 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.