Surveys

Underwater operations 1100Z to 2000Z daily 10 thru 17 feb in 24-11S 046-21W

Western South Atlantic · Brazil-south Coast · HYDROLANT 406/22

issued
2022-02-10 03:21Z
status
cancelled 2022-02-11 16:06Z (archive)
self-cancels
2022-02-17 21:00Z
authority
NAVAREA V COASTAL S 122/22 100240Z FEB 22.
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 1100Z TO 2000Z DAILY
   10 THRU 17 FEB IN 24-11S 046-21W.
2. CANCEL THIS MSG 172100Z FEB 22.

This area · survey operations

194 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
05
10
15
20
24

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

Timeline

Nearby now · within 120 nm

Worldwide now

73 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.