Surveys
Underwater operations in progress until 022001Z nov by M/V seabiscuit and M/V open seas I in 24-11S 046-21W
Western South Atlantic · Brazil-south Coast · HYDROLANT 2702/21
- issued
- 2021-10-31 03:32Z
- status
- cancelled 2021-11-02 21:01Z (archive)
- self-cancels
- 2021-11-02 21:01Z
- cancels
- HYDROLANT 2701/21
- authority
- NAVAREA V COASTAL S 763/21 310146Z OCT 21.
- sea
- South Atlantic Ocean
- position
- -24.183, -46.350
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTH COAST. DNC 01. 1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 022001Z NOV BY M/V SEABISCUIT AND M/V OPEN SEAS I IN 24-11S 046-21W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2701/21. 3. CANCEL THIS MSG 022101Z NOV 21.
This area · survey operations
195 within 180 nm since 1999 · 1 in the last 12 months · 0 in force now
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- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Underwater operations 0500Z to 2000Z daily 16 thru 25 apr by M/V double diamond and M/V novo estado in…2024-04-16
- Underwater operations 1100Z to 2000Z daily 06 apr thru 05 may in 24-07.11S 046-08.76W2024-04-06
- Underwater operations 1100Z to 2000Z daily 28 feb thru 26 mar by M/V big john VI, M/V rodrigo neto I and M/V…2024-02-28
- Underwater operations in progress until 072000Z mar in 24-09.24S 046-12.68W2024-02-08
- Underwater operations 071100Z feb to 062000Z mar in 24-10.04S 046-14.53W2024-02-07
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
- Laje da conceicao light 24-14.18S 046-41.46W unlit until 24 sepNav aids · 18.9 nm
- Odas buoy established in 24-06.36S 045-38.78WNav aids · 38.8 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.