Offshore wind farm construction area established in area bound by 55-00.60N 001-55.00E, 55-09.40N…
North Sea · HYDROLANT 1271/23
What this record establishes
Archived notice · 2024-02-17 02:09Z
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 103/23 080900Z JUN 23.. Issued 2023-06-08 09:16Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Offshore wind farm construction area established in area bound by 55-00.60N 001-55.00E, 55-09.40N…cancelled by this notice
- Cancel HYDROLANT 1271/23 and this msglater cancellation notice
- issued
- 2023-06-08 09:16Z
- status
- Archived notice
- authority
- NAVAREA I 103/23 080900Z JUN 23.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Sea
- position
- 54.990, 2.231
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH SEA. DNC 20. 1. OFFSHORE WIND FARM CONSTRUCTION AREA ESTABLISHED IN AREA BOUND BY 55-00.60N 001-55.00E, 55-09.40N 002-11.60E, 54-58.20N 002-32.30E, 54-49.30N 002-16.80E. 2. CANCEL HYDROLANT 1219/23.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Offshore wind farm
- Construction or maintenance at an offshore wind farm: turbine foundations, jack-up vessels and export cables.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · offshore structure notices
27 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.
- Offshore wind farm construction area established in area bound by 55-00.60N 001-55.00E, 55-09.40N…2023-06-01
- Offshore wind farm construction area established in area bound by 55-04.40N 001-29.00E, 55-06.30N…2023-01-09
- Offshore wind farm construction area established in area bound by 55-04.40N 001-29.00E, 55-06.30N…2023-01-02
- Cancel HYDROLANT 1442/142014-06-16
- Netherlands2014-06-09
- Southern North Sea2014-05-14
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 offshore structure notices listed in force · see all
Record snapshot 2026-10-01 17:01Z; source collection times vary.
Structures
Platforms, wind turbines and fish farms established, under construction or removed. All current offshore structure 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.