Surveys
Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-55N…
HYDROLANT 1701/99
- issued
- 1999-08-14 01:40Z
- status
- cancelled 1999-08-16 01:59Z (archive)
- cancels
- HYDROLANT 1690/99
- authority
- WZ 1459/99 (& 1695/99);1690/99: MARIDIPART LA SPEZIA 503/99 131947Z AUG 99; 1691/99: WZ 1457/99 132106Z AUG 99.
- position
- 49.875, -11.833
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V JEAN CHARCOT ALONG TRACKLINE BETWEEN 49-55N 011-36W AND 49-50N 012-04W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 1690/99(53), 1691/99(35), 1695/99.
This area · survey operations
132 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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23
- 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…2020-08-03
- Survey operations in progress until further notice by M/V ridley thomas in vicinity of trackline joining…2020-07-29
- Survey operations in progress until further notice by M/V ridley thomas in vicinity of trackline joining…2020-07-24
- Survey operations 22 thru 31 jul by M/V ridley thomas along trackline joining 47-04.5N 010-42.3W, 48-26.5N…2020-07-21
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Derelict nine meter yacht adrift in 43-54N 008-35E at 122050Z augreplaced · 1999-08-12
- Gasker light 57-59N 007-17W unreliablereplaced · 1999-08-12
- Underwater operations in progress until further notice by M/V jean charcot along trackline between 49-57N…replaced · 1999-08-13
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
75 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.