Surveys
Underwater operations in progress until further notice by M/V mirfak along trackline joining 55-18N 009-50W,…
HYDROLANT 1745/99
- issued
- 1999-08-20 06:50Z
- status
- cancelled 1999-08-22 02:21Z (archive)
- authority
- WZ 1502/99 200616Z AUG 99
- sea
- North Atlantic Ocean
- position
- 55.453, -8.568
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V MIRFAK ALONG TRACKLINE JOINING 55-18N 009-50W, 55-34N 007-42W, 55-33N 007-18W. WIDE BERTH REQUESTED.
This area · survey operations
165 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
23
- 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 in progress until further notice by c/s ile daix in vicinity of trackline joining…2021-03-30
- Survey operations in progress until further notice by M/V fugro mercator, M/V fugro seeker and M/V spectrum…2021-03-25
- Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…2021-02-11
- Survey operations in progress until further notice by M/V fugro mercator, M/V fastnet pelican and M/V…2021-02-11
- Underwater operations in progress until further notice by M/V normand frontier in vicinity of trackline…2020-10-25
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
- Cancel HYDROLANT 1745/99 and this msg, operations completedcancelled by · 1999-08-22
Nearby now · within 120 nm
- Mf dsc service off air at tiree 56-30.20N 006-57.80WNav aids · 83 nm
- Mew island light 54-41.90N 005-30.80W unreliableNav aids · 114.3 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.