Surveys
Survey operations continue off Brazil until September 19, with vessels Amazon Warrior, Venture G, and Big John VII towing twelve 10,000-meter cables; wide berth requested.
North Atlantic · Brazil · HYDROLANT 1774/26
- issued
- 2026-09-07 06:13Z
- status
- cancelled 2026-09-08 17:45Z (dropped from inforce)
- self-cancels
- 2026-09-20 00:01Z
- sea
- North Atlantic Ocean
- position
- 3.906, -48.126
- source
- nga_inforce · first seen 2026-09-08 18:17Z
Original warning text
NORTH ATLANTIC. BRAZIL. 1. SURVEY OPERATIONS IN PROGRESS UNTIL 19 SEP BY M/V AMAZON WARRIOR, M/V VENTURE G AND M/V BIG JOHN VII TOWING 12 10000 METER LONG CABLES IN AREA BOUND BY 04-33.71N 050-01.26W, 05-42.36N 048-58.13W, 03-02.99N 046-18.20W, 01-59.67N 047-14.09W, 02-02.36N 047-18.50W, 02-05.99N 047-20.75W, 02-07.44N 047-21.64W, 02-33.17N 047-37.51W, 02-41.94N 047-47.84W, 02-54.27N 047-55.54W, 03-10.64N 048-13.68W, 03-17.80N 048-17.87W, 03-34.64N 048-37.52W, 03-48.19N 048-54.43W, 03-56.43N 049-06.33W, 04-07.01N 049-23.23W, 04-15.75N 049-43.94W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 200001Z SEP 26.
This area · survey operations
18 within 180 nm since 2001 · 1 in the last 12 months · 0 in force now
01
05
10
15
20
25
26
- Survey operations in progress until 112359Z jun by M/V marion dufresne in area bound by 06-59.70N…2023-06-01
- Survey operations in progress until 31 aug by M/V oceanic vega, M/V sanco scorpio and M/V drs retumbante…2023-01-07
- Survey operations in progress until 31 aug by M/V oceanic vega, M/V sanco scorpio and M/V drs retumbante…2023-01-07
- Survey operations in progress until 10 aug by M/V nhisirius in area bound by 01-21.82N 049-21.70W, 01-21.82N…2019-08-02
- Survey operations in progress 31 jul thru 02 aug by M/V nhisirius in area bound by 01-23.42N 049-24.08W,…2019-07-30
- Survey operations in progress until 09 nov by M/V comte higor II in 01-24.02N 049-14.93W2018-10-01
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
Nothing else in force within 120 nm.
Worldwide now
60 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.