Surveys
Underwater operations in progress until further notice by M/V seaworker within two miles of 51-06.6N 004-16.0W
HYDROLANT 98/01
- issued
- 2001-01-09 14:58Z
- status
- cancelled 2001-01-15 14:10Z (archive)
- authority
- WZ 62/01 091412Z JAN 01
- sea
- Bristol Channel
- position
- 51.110, -4.267 · r 2.0 nm
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V SEAWORKER WITHIN TWO MILES OF 51-06.6N 004-16.0W. WIDE BERTH REQUESTED.
This area · survey operations
752 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
24
- Survey operations in progress until further notice by M/V sw amundsen towing seven 2200 meter long cables in…2024-04-18
- Survey operations in progress until further notice by M/V mintaka I in vicinity of trackline joining…2023-08-06
- Underwater operations 180800Z to 192200Z nov by M/V willchallenge in vicinity of 50-19.0N 004-14.7W2022-11-17
- 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
- Survey operations in progress until 10 sep by M/V laperouse and M/V borda along trackline joining 48-27.48N…2022-09-01
- Underwater operations in progress until further notice by unmanned submersible ALR4 in vicinity of trackline…2022-06-10
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
Nearby now · within 120 nm
- Fowey light 50-19.60N 004-38.90W unreliableNav aids · 49.2 nm
Worldwide now
86 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.