Unexploded ordnance in area bound by 52-05N 001-37E, 52-05N 001-45E, 51-58N 001-30E, 52-00N 001-30E
North Sea · HYDROLANT 3394/18
What this record establishes
Archived notice · 2018-11-06 10:42Z
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 1146/18 311755Z OCT 18.. Issued 2018-10-31 19:21Z. 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
- Unexploded ordnance in area bound by 52-05N 001-37E, 52-05N 001-45E, 51-58N 001-30E, 52-00N 001-30Ecancelled by this notice
- Cancel HYDROLANT 3394/18 and this msg, ordnance removedlater cancellation notice
- issued
- 2018-10-31 19:21Z
- status
- Archived notice
- authority
- WZ 1146/18 311755Z OCT 18.
- issued by
- WZ
- sea
- North Sea
- position
- 52.039, 1.606
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH SEA. ENGLAND. DNC 20. CHART 37140. 1. UNEXPLODED ORDNANCE IN AREA BOUND BY 52-05N 001-37E, 52-05N 001-45E, 51-58N 001-30E, 52-00N 001-30E. 2. CANCEL HYDROLANT 2960/18.
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.
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Unexploded ordnance
- Bombs, shells, mines or torpedoes found on the seabed or washed up, and the operations to remove or destroy them.
- 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 · ordnance operations
204 within 180 nm since 1999 · 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.
- Unexploded ordnance in: a. 54-52.04N 001-42.22E2022-12-13
- Unexploded ordnance in: a. 54-52.04N 001-42.22E2022-11-01
- Unexploded ordnance in: a. 54-52.04N 001-42.22E2022-09-20
- Unexploded ordnance in: a. 55-04.38N 001-31.43E2022-08-09
- Unexploded ordnance in: a. 52-25.1N 002-02.1E2022-02-03
- Unexploded ordnance in: a. 52-25.1N 002-02.1E2021-11-11
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
0 ordnance operations listed in force · see all
Record snapshot 2026-10-02 21:19Z; source collection times vary.
Ordnance
Ordnance disposal, underwater detonations and unexploded ordnance. All current ordnance operations →
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.