Surveys
Underwater operations in progress until further notice by M/V geo searcher between 51-05N 009-35W and 50-40N…
HYDROLANT 1883/99
- issued
- 1999-09-04 17:24Z
- status
- cancelled 1999-09-07 17:33Z (archive)
- cancels
- HYDROLANT 1868/99
- authority
- WZ 1604/99 041632Z SEP 99
- sea
- Celtic Sea
- position
- 50.875, -10.583
- 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 51-05N 009-35W AND 50-40N 011-35W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1868/99.
This area · survey operations
260 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
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23
- Survey operations in progress until 20 jul by M/V celtic explorer in vicinity of trackline joining 47-30.00N…2023-06-14
- Survey operations 072201Z to 112159Z jun by vessel nanoplon in area within one mile of 48-20.67N 008-22.08W2023-06-06
- Survey operations in progress until further notice by M/V ridley thomas along trackline joining 48-29.2N…2020-08-30
- Survey operations in progress until further notice by M/V ridley thomas in vicinity of trackline joining…2020-08-08
- Survey operations in progress until further notice by M/V ridley thomas in vicinity of trackline joining…2020-08-03
- Survey operations in progress until further notice by M/V ridley thomas in vicinity of trackline joining…2020-07-29
Season · when survey operations happen here
J
F
M
A
M
J
J
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month of issue, all years in the archive
Timeline
- Underwater operations in progress until further notice by M/V geo searcher between 51-18N 008-00W and 51-11N…replaced · 1999-09-02
- Cancel HYDROLANT 1883/99 and this msg, survey suspenededcancelled by · 1999-09-07
Nearby now · within 120 nm
Nothing else in force within 120 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.