Surveys

Survey operations in progress until 102359Z oct by M/V sw diamond towing nine 225 meter long cables in area…

Western South Atlantic · HYDROLANT 2571/22

issued
2022-10-10 06:29Z
status
cancelled 2022-10-11 00:59Z (archive)
self-cancels
2022-10-11 00:59Z
authority
NAVAREA V 521/22 100208Z OCT 22.
sea
South Atlantic Ocean
position
-25.546, -42.849
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL
   102359Z OCT BY M/V SW DIAMOND
   TOWING NINE 225 METER LONG CABLES
   IN AREA BOUND BY
   25-38.32S 042-39.03W, 25-39.05S 042-39.43W,
   25-27.31S 043-02.71W, 25-26.47S 043-02.52W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 110059Z OCT 22.

This area · survey operations

570 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

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

Nearby now · within 120 nm

Worldwide now

83 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.