Surveys
Underwater operations 1100Z to 2000Z daily 22 jul thru 31 aug by M/V derby, M/V zatto e and M/V commando b…
Western South Atlantic · Brazil-southeast Coast · HYDROLANT 2222/19
- issued
- 2019-07-21 22:39Z
- status
- cancelled 2019-08-31 21:00Z (archive)
- self-cancels
- 2019-08-31 21:00Z
- authority
- NAVAREA V COASTAL E 714/19 212129Z JUL 19.
- sea
- South Atlantic Ocean
- position
- -22.305, -40.210
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTHEAST COAST. DNC 01. 1. UNDERWATER OPERATIONS 1100Z TO 2000Z DAILY 22 JUL THRU 31 AUG BY M/V DERBY, M/V ZATTO E AND M/V COMMANDO B IN 22-18.32S 040-12.60W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 312100Z AUG 19.
Activity windows · 41 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2019-07-22 11:00Z | 2019-07-22 20:00Z | — | 9 h |
| 2019-07-23 11:00Z | 2019-07-23 20:00Z | — | 9 h |
| 2019-07-24 11:00Z | 2019-07-24 20:00Z | — | 9 h |
| 2019-07-25 11:00Z | 2019-07-25 20:00Z | — | 9 h |
| 2019-07-26 11:00Z | 2019-07-26 20:00Z | — | 9 h |
| 2019-07-27 11:00Z | 2019-07-27 20:00Z | — | 9 h |
| 2019-07-28 11:00Z | 2019-07-28 20:00Z | — | 9 h |
| 2019-07-29 11:00Z | 2019-07-29 20:00Z | — | 9 h |
| … 33 more | |||
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
746 within 180 nm since 2000 · 25 in the last 12 months · 15 in force now
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26
- Underwater operations 0800Z to 1800Z daily 21 aug thru 04 sep by M/V capetan vassilis II and M/V comando b…2026-08-20
- Underwater operations in progress until 280259Z aug by M/V siem pilot in 24-35.02S 042-15.37W2026-08-19
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V charlie and M/V comando b in 20-24.27S…2026-08-19
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V comando b and M/V linden trader in…2026-08-19
- Underwater operations 1100Z to 2100Z daily 20 aug thru 03 sep by M/V hui an and M/V comando b in 20-23.17S…2026-08-19
- Underwater operations 0800Z to 1800Z daily until 28 aug by M/V spar aries and M/V comando b in 20-48.85S…2026-08-18
Season · when survey operations happen here
J
F
M
A
M
J
J
A
S
O
N
D
month of issue, all years in the archive
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 · 10.4 nm
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 12.3 nm
- Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 14.3 nm
- Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 38.6 nm
- Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 39.5 nm
- Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 43.6 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 · 43.8 nm
- RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sepNav aids · 49.5 nm
- Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 52.7 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 · 57.8 nm
- Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 72.9 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 · 114.5 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.