Surveys
Underwater operations sunrise to sunset daily by M/V thalassa within 18 miles of: a. 47-20N 005-00W on 22 oct
HYDROLANT 3571/00
- issued
- 2000-10-21 15:42Z
- status
- cancelled 2000-10-24 00:00Z (archive)
- authority
- NAVAREA II 305/00 211530Z OCT 00
- sea
- Bay of Biscay
- position
- 47.083, -4.917
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS SUNRISE TO SUNSET DAILY BY M/V THALASSA WITHIN 18 MILES OF: A. 47-20N 005-00W ON 22 OCT. B. 46-50N 004-50W ON 23 OCT. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 24 OCT.
This area · survey operations
416 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.