Surveys

Underwater operations in progress until further notice by M/V atlantic guardian vicinity 51-16.5N 003-40.2W

England-southwest Coast · Bristol Channel · HYDROLANT 905/15

issued
2015-04-16 11:01Z
status
cancelled 2015-04-16 21:00Z (archive)
cancels
HYDROLANT 903/15
authority
WZ 462/15 160920Z APR 15.
sea
Bristol Channel
position
51.275, -3.670
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

ENGLAND-SOUTHWEST COAST.
BRISTOL CHANNEL.
DNC 20.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   FURTHER NOTICE BY M/V ATLANTIC GUARDIAN
   VICINITY 51-16.5N 003-40.2W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 903/15.

This area · survey operations

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

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Season · when survey operations happen here

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Timeline

Nearby now · 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.