Surveys
Survey operations in progress until 10 jan 23 by M/V ramform tethys towing 12 6000 meter long cables in area…
Western South Atlantic · Brazil · HYDROLANT 3310/22
- issued
- 2022-12-27 21:32Z
- status
- cancelled 2023-01-11 00:01Z (archive)
- self-cancels
- 2023-01-11 00:01Z
- cancels
- HYDROLANT 3273/22
- authority
- NAVAREA V COASTAL 928/22 272034Z DEC 22.
- position
- -22.012, -39.711
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL. DNC 01. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 10 JAN 23 BY M/V RAMFORM TETHYS TOWING 12 6000 METER LONG CABLES IN AREA BOUND BY 21-46.90S 039-24.63W, 21-46.74S 040-00.80W, 22-05.62S 040-00.93W, 22-06.17S 040-00.63W, 22-09.14S 040-00.05W, 22-10.75S 040-00.07W, 22-11.69S 040-00.28W, 22-12.25S 040-00.54W, 22-12.91S 040-00.98W, 22-14.65S 040-01.00W, 22-14.81S 039-24.63W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 3273/22. 3. CANCEL THIS MSG 110001Z JAN 23.
This area · survey operations
701 within 180 nm since 2000 · 15 in the last 12 months · 15 in force now
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- Underwater operations 1100Z to 2100Z daily 15 thru 29 aug by M/V comando b and M/V rosco banyan in 20-23.37S…2026-08-14
- Underwater operations 1100Z to 2100Z daily 12 thru 21 aug by M/V comando b and M/V faneromeni in 20-23.67S…2026-08-13
- Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…2026-08-13
- Underwater operations in progress until 27 aug by M/V navios felix and M/V comando b in 20-22.12S 040-08.38W2026-08-13
- Underwater operations 0800Z to 1800Z daily 11 thru 25 aug by M/V comando b and M/V faneromeni in 20-23.00S…2026-08-10
- Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…2026-08-09
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…Surveys · 23.5 nm
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 44.9 nm
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 47.1 nm
- Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 54.6 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 58.7 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 61.6 nm
- Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 62.3 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 62.5 nm
- RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sepNav aids · 74.7 nm
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 81.6 nm
- Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…Surveys · 90.6 nm
- Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…Surveys · 100.1 nm
Worldwide now
75 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.