Surveys
Underwater operations 260001Z to 262359Z apr by M/V thalia in area bound by 47-43N 004-12W, 47-37N 003-53W,…
HYDROLANT 691/07
- issued
- 2007-04-25 13:51Z
- status
- cancelled 2007-04-27 00:59Z (archive)
- self-cancels
- 2007-04-27 00:59Z
- authority
- NAVAREA II 161/07 251310Z APR 07.
- sea
- Bay of Biscay
- position
- 47.600, -4.116
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 260001Z TO 262359Z APR BY M/V THALIA IN AREA BOUND BY 47-43N 004-12W, 47-37N 003-53W, 47-28N 004-05W, 47-37N 004-20W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 270059Z APR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2007-04-26 00:01Z | 2007-04-26 23:59Z | — | 23 h 58 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
434 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Survey operations 19 apr thru 28 may by M/V thalassa along trackline joining 47-50.31N 004-08.86W, 43-22.95N…2024-04-17
- Survey operations 09 thru 13 oct by M/V minibex in area bound by 45-44.78N 001-55.27W, 45-53.86N 002-02.56W,…2023-10-06
- Underwater operations 02 thru 11 oct by M/V atalante in area bound by 47-26.59N 006-34.33W, 46-52.40N…2023-09-29
- Survey operations in progress until 060001Z oct by M/V pourquoi pas in area bound by 47-17.05N 009-17.05W,…2023-09-25
- Survey operations in progress until 112200Z oct by M/V emma bardan in area bound by 48-00.00N 005-50.00W,…2023-08-16
- Survey operations 072201Z to 112159Z jun by vessel nanoplon in area within one mile of 48-20.67N 008-22.08W2023-06-06
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
86 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.