Ordnance

Nga chart 37140 (33RD ed)

North Sea · HYDROLANT 1966/11

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) · WZ 1210/11 230255Z MAY 11.. Issued 2011-11-23 07:58Z. 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 51.567, 1.616. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Sea →

issued: 2011-11-23 07:58Z
status: Archived notice
authority: WZ 1210/11 230255Z MAY 11.
issued by: WZ
sea: North Sea
position: 51.567, 1.616
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

ENGLAND-SOUTHEAST COAST.
NGA CHART 37140 (33RD ED).
UNEXPLODED ORDNANCE MARKED WITH BUOY,
PINK, IN 51-34.04N 001-36.95E.

Reading this warning

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.
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.

All warning terms →

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. 52-25.1N 002-02.1E2022-02-03
Unexploded ordnance in: a. 52-25.1N 002-02.1E2021-11-11
Unexploded ordnance reported in 52-34.2N 002-10.8E2021-08-25
Unexploded ordinance in 52-26.63N 001-55.87E2021-02-14
Underwater ordnance detonation 150800Z to 151230Z jul in vicinity 53-21.8N 000-23.3E2020-07-15
Underwater ordnance detonation 150800Z to 151100Z jul in vicinity 53-21.8N 000-23.3E2020-07-15

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 2026-09-24 18:30Z; 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.