Surveys
Underwater operations 1000Z to 2000Z daily 17 thru 31 aug by M/V cavalo de troia and M/V camorim tempestade…
Western South Atlantic · Brazil-south Coast · HYDROLANT 2624/18
- issued
- 2018-08-16 20:34Z
- status
- cancelled 2018-08-31 21:00Z (archive)
- self-cancels
- 2018-08-31 21:00Z
- authority
- NAVAREA V COASTAL S 620/18 162016Z AUG 18.
- sea
- South Atlantic Ocean
- position
- -23.071, -43.104
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
WESTERN SOUTH ATLANTIC. BRAZIL-SOUTH COAST. DNC 01. 1. UNDERWATER OPERATIONS 1000Z TO 2000Z DAILY 17 THRU 31 AUG BY M/V CAVALO DE TROIA AND M/V CAMORIM TEMPESTADE IN 23-04.25S 043-06.22W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 312100Z AUG 18.
Activity windows · 15 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2018-08-17 10:00Z | 2018-08-17 20:00Z | — | 10 h |
| 2018-08-18 10:00Z | 2018-08-18 20:00Z | — | 10 h |
| 2018-08-19 10:00Z | 2018-08-19 20:00Z | — | 10 h |
| 2018-08-20 10:00Z | 2018-08-20 20:00Z | — | 10 h |
| 2018-08-21 10:00Z | 2018-08-21 20:00Z | — | 10 h |
| 2018-08-22 10:00Z | 2018-08-22 20:00Z | — | 10 h |
| 2018-08-23 10:00Z | 2018-08-23 20:00Z | — | 10 h |
| 2018-08-24 10:00Z | 2018-08-24 20:00Z | — | 10 h |
| … 7 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
510 within 180 nm since 2000 · 10 in the last 12 months · 7 in force now
00
05
10
15
20
25
26
- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Survey operations in progress until 24 aug by M/V sea 1 dorado in area bound by 24-53.20S 042-47.12W,…2026-08-19
- Underwater operations in progress until 280259Z aug by M/V siem pilot in 24-35.02S 042-15.37W2026-08-19
- 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
- Survey operations in progress until 09 jul 27 by M/V bgp dragon towing 250 meter long cable in area bound by…2026-08-08
- Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05W2026-08-06
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
- Ponta dos meros light 23-13.57S 044-20.83W unlit until 26 sepNav aids · 69.3 nm
- Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…Exercises · 100.3 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 · 112.7 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.