Surveys
Survey operations 280300Z feb to 040259Z mar by M/V sirius in area bound by 26-04S 045-54W, 26-15S 045-41W,…
Brazil-south Coast · HYDROLANT 330/11
- issued
- 2011-02-26 02:02Z
- status
- cancelled 2011-03-04 03:59Z (archive)
- self-cancels
- 2011-03-04 03:59Z
- authority
- NAVAREA V 114/11 260054Z FEB 11.
- sea
- South Atlantic Ocean
- position
- -26.473, -46.152
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-SOUTH COAST. 1. SURVEY OPERATIONS 280300Z FEB TO 040259Z MAR BY M/V SIRIUS IN AREA BOUND BY 26-04S 045-54W, 26-15S 045-41W, 26-53S 046-24W, 26-41S 046-37W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 040359Z MAR.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2011-02-28 03:00Z | 2011-03-04 02:59Z | — | 95 h 59 |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
This area · survey operations
362 within 180 nm since 1999 · 3 in the last 12 months · 2 in force now
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26
- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Survey operations 10 thru 17 aug by M/V ramform titan towing 12 9000 meter long cables in area bound by…2026-08-09
- Scientific bouy, yellow, fl y 20 sec established in 27-24.38S 047-15.92W2026-02-27
- Underwater operations 1100Z to 2000Z daily 06 apr thru 05 may in 24-07.11S 046-08.76W2024-04-06
- Survey operations in progress until 30 apr by M/V ramform victory towing ten 8800 meter long cables in area…2024-04-03
- Survey operations in progress until 31 mar by M/V ramform victory towing ten 8800 meter long cables in area…2024-03-07
Season · when survey operations happen here
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F
M
A
M
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J
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month of issue, all years in the archive
Nearby now · within 120 nm
Worldwide now
84 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.