Surveys
Underwater operations in progress until further notice by M/V ile de aix and M/V trya vicinity 51-21.38N…
Southern North Sea · Dover Strait · England-southeast Coast · HYDROLANT 1738/16
- issued
- 2016-07-11 00:39Z
- status
- cancelled 2016-07-16 08:40Z (archive)
- cancels
- HYDROLANT 1721/16
- authority
- WZ 833/16 110010Z JUL 16.
- sea
- North Sea
- position
- 51.356, 1.561
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
SOUTHERN NORTH SEA. DOVER STRAIT. ENGLAND-SOUTHEAST COAST. DNC 20, DNC 21. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V ILE DE AIX AND M/V TRYA VICINITY 51-21.38N 001-33.68E. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1721/16.
This area · survey operations
486 within 180 nm since 1997 · 0 in the last 12 months · 0 in force now
97
00
05
10
15
20
23
- Survey operations in progress until further notice by M/V mintaka I in vicinity of trackline joining…2023-08-06
- Survey operations 15 sept thru 20 oct by M/V thlassa in vicinity of trackline joining 48-30.00N 006-00.00W,…2022-09-14
- Underwater operations in progress until further notice by M/V uilenspiegel and c/s responder in vicinity of…2022-07-18
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 51-22.80N…2022-07-16
- Survey operations in progress until further notice by M/V nora b in vicinity of trackline joining 50-46.80N…2022-07-12
- Underwater operations in progress until further notice by M/V uilenspiegel in vicinity of trackline joining…2022-07-09
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
Timeline
- Underwater operations in progress until further notice by M/V trya vicinity 51-21.38N 001-33.68Ecancels · 2016-07-08
- Underwater operations in progress until further notice by M/V trya vicinity 51-21.38N 001-33.68Ereplaced · 2016-07-08
- Underwater operations in progress until further notice by M/V trya vicinity 51-21.38N 001-33.68Ecancelled by · 2016-07-16
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
83 survey operations in force · see all
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey 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.