Surveys

Underwater operations in progress until further notice by M/V neftegaz 31 vicinity of trackline between…

HYDROLANT 1545/01

issued
2001-05-28 06:40Z
status
cancelled 2001-06-04 09:40Z (archive)
cancels
HYDROLANT 1537/01
authority
NAVAREA II 208/01 280510Z MAY 01; WZ 1171/01 280551Z MAY 01
sea
Celtic Sea
position
48.233, -6.692
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
   NOTICE BY M/V NEFTEGAZ 31 VICINITY OF TRACKLINE
   BETWEEN 48-22N 006-37W AND 48-06N 006-46W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1537/01

This area · survey operations

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

99
00
05
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15
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23

Season · when survey operations happen here

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F
M
A
M
J
J
A
S
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N
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month of issue, all years in the archive

Timeline

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.