Surveys

Underwater operations 16 thru 22 apr by M/V thalassa in area bound by 46-40N 005-40W, 46-40N 006-40W, 47-20N…

Bay of Biscay · Celtic Sea · France · HYDROLANT 1049/22

issued
2022-04-13 11:23Z
status
cancelled 2022-04-23 00:01Z (archive)
authority
AVURNAV BREST 209/22 131200Z APR 22.
sea
Celtic Sea
position
47.000, -6.167
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

BAY OF BISCAY.
CELTIC SEA.
FRANCE.
DNC 08.
1. UNDERWATER OPERATIONS 16 THRU 22 APR BY
   M/V THALASSA IN AREA BOUND BY
   46-40N 005-40W, 46-40N 006-40W,
   47-20N 006-40W, 47-20N 005-40W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 23 APR 22.

This area · survey operations

384 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
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05
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24

Season · when survey operations happen here

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M
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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.