Surveys

Underwater operations in progress until further notice by M/V havila reel vicinity 53-55N 004-49W

HYDROLANT 980/01

issued
2001-03-26 17:54Z
status
cancelled 2001-03-27 01:55Z (archive)
cancels
HYDROLANT 979/01HYDROLANT 973/01
authority
WZ 717/01 261622Z MAR 01; UKMRCC AOR-W EGC #838 261637Z MAR 01
sea
Irish Sea and St. George's Channel
position
53.917, -4.817
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY
   M/V HAVILA REEL VICINITY 53-55N 004-49W. WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 979/01(35,38), SIGNAL CEASED.
3. CANCEL HYDROLANT 973/01.

This area · survey operations

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

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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.