Surveys
Underwater operations 0900Z to 2000Z daily 11 thru 23 dec in: a. 04-55.40S 036-22.53W
Brazil-northeast Coast · HYDROLANT 2380/10
- issued
- 2010-12-10 03:38Z
- status
- cancelled 2010-12-23 21:00Z (archive)
- self-cancels
- 2010-12-23 21:00Z
- authority
- NAVAREA V N 1573/10 100027Z DEC 10.
- sea
- South Atlantic Ocean
- position
- -4.979, -36.386
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTHEAST COAST. 1. UNDERWATER OPERATIONS 0900Z TO 2000Z DAILY 11 THRU 23 DEC IN: A. 04-55.40S 036-22.53W. B. 05-02.05S 036-23.78W. 2. CANCEL THIS MSG 232100Z DEC.
Activity windows · 13 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2010-12-11 09:00Z | 2010-12-11 20:00Z | — | 11 h |
| 2010-12-12 09:00Z | 2010-12-12 20:00Z | — | 11 h |
| 2010-12-13 09:00Z | 2010-12-13 20:00Z | — | 11 h |
| 2010-12-14 09:00Z | 2010-12-14 20:00Z | — | 11 h |
| 2010-12-15 09:00Z | 2010-12-15 20:00Z | — | 11 h |
| 2010-12-16 09:00Z | 2010-12-16 20:00Z | — | 11 h |
| 2010-12-17 09:00Z | 2010-12-17 20:00Z | — | 11 h |
| 2010-12-18 09:00Z | 2010-12-18 20:00Z | — | 11 h |
| … 5 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
89 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
24
- Survey operations in progress until 241000Z apr by M/V taurus in area bound by 06-56.53S 034-49.48W,…2024-03-16
- Survey operations in progress until 092100Z mar by M/V taurus in area bound by 06-50.45S 034-45.38W,…2024-03-05
- Survey operations in progress until 182300Z may in areas bound by: a. 02-56.00S 038-00.20W, 02-56.00S…2023-05-18
- Underwater operations 0800Z to 2100Z daily 05 sep thru 05 mar 23 by M/V paracuru in 04-52.42S 036-22.45W2022-09-05
- Underwater operations 1100Z to 1900Z daily 15 thru 22 jun by M/V texas and M/V seamaster I in 05-42.08S…2021-06-14
- Underwater operations 1100Z to 1900Z daily 01 thru 06 jun by M/V texas and M/V seamaster I in 05-42.08S…2021-05-31
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
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.