Surveys
Underwater operations by motor vessel ZWERVER I continue until further notice in Irish Sea off Wales within 53-34.50N 003-35.40W, 53-34.60N 003-28.20W, 53-32.60N 003-35.70W; wide berth requested.
Irish Sea · Wales · HYDROLANT 1821/26
- issued
- 2026-09-14 17:08Z
- status
- cancelled 2026-09-16 15:45Z (dropped from inforce)
- sea
- Irish Sea and St. George's Channel
- position
- 53.565, -3.552
- source
- nga_inforce · first seen 2026-09-16 16:47Z
Original warning text
IRISH SEA. WALES. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V ZWERVER I IN AREA BOUND BY 53-34.50N 003-35.40W, 53-34.60N 003-28.20W, 53-32.60N 003-35.70W. WIDE BERTH REQUESTED.
This area · survey operations
460 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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- Survey operations in progress until 31 oct by M/V ramform vanguard towing cables in area bound by 53-44.12N…2024-09-26
- Survey operations in progress until further notice by M/V sw amundsen towing seven 2200 meter long cables in…2024-04-18
- Survey operations in progress until further notice by M/V sw bly towing four 2300 meter long cables, marked…2022-05-08
- Survey operations in progress until further notice by M/V sw bly towing four 2300 meter long cables, marked…2022-04-17
- Survey operations in progress until further notice by M/V ramform hyperion towing nine 3700 meter long…2022-04-15
- Survey operations in progress until further notice by S/V ocean resolution in area bound by 54-05.6N…2021-08-26
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Walney extension wind farmNav aids · 35.4 nm
Worldwide now
55 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.