Surveys
Underwater operations 150001Z to 170001Z feb by M/V thalassa in area between 48-22N 48-00N and 004-43W 005-40W
Eastern North Atlantic · Celtic Sea · Bay of Biscay · France-northwest Coast · HYDROLANT 369/15
- issued
- 2015-02-13 06:12Z
- status
- cancelled 2015-02-17 01:01Z (archive)
- self-cancels
- 2015-02-17 01:01Z
- authority
- NAVAREA II 46/15 130423Z FEB 15.
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. CELTIC SEA. BAY OF BISCAY. FRANCE-NORTHWEST COAST. DNC 08, DNC 20. 1. UNDERWATER OPERATIONS 150001Z TO 170001Z FEB BY M/V THALASSA IN AREA BETWEEN 48-22N 48-00N AND 004-43W 005-40W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 170101Z FEB 15.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2015-02-15 00:01Z | 2015-02-17 00:01Z | — | 48 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
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.