Surveys
Underwater operations in progress until further notice by M/V geo searcher between 51-39N 006-20W and 51-23N…
HYDROLANT 1827/99
- issued
- 1999-08-29 22:50Z
- status
- cancelled 1999-08-31 17:48Z (archive)
- cancels
- HYDROLANT 1806/99
- authority
- WZ 1575/99 292222Z AUG 99
- sea
- Celtic Sea
- position
- 51.517, -6.642
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V GEO SEARCHER BETWEEN 51-39N 006-20W AND 51-23N 006-57W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1806/99.
This area · survey operations
702 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 20 jul by M/V celtic explorer in vicinity of trackline joining 47-30.00N…2023-06-14
- Underwater operations 180800Z to 192200Z nov by M/V willchallenge in vicinity of 50-19.0N 004-14.7W2022-11-17
- Underwater operations in progress until further notice by unmanned submersible ALR4 in vicinity of trackline…2022-06-10
- Underwater operations in progress until further notice by submersible in vicinity of trackline joining…2022-05-10
- Survey operations in progress until further notice by M/V sw bly towing four 2300 meter long cables, marked…2022-05-08
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 · 103.9 nm
Worldwide now
84 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.