Surveys

Wide berth requested

Western South Atlantic · Brazil-south Coast · HYDROLANT 580/19

issued
2019-02-21 23:32Z
status
cancelled 2019-02-28 01:31Z (archive)
cancels
HYDROLANT 477/19
authority
NAVAREA V COASTAL S 151/19 211748Z FEB 19.
sea
South Atlantic Ocean
position
-24.586, -42.536
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-SOUTH COAST.
DNC 01
1. SURVEY OPERATIONS IN PROGRESS UNTIL 28 FEB
   BY M/V SUBSEA VIKING WITH SUBMERSIBLE
   IN AREA BOUND BY
   24-34.75S 042-44.83W, 24-26.15S 042-24.83W,
   24-35.50S 042-19.63W, 24-44.22S 042-39.10W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 477/19.
3. CANCEL THIS MSG 01 MAR 19.

This area · survey operations

599 within 180 nm since 2000 · 5 in the last 12 months · 3 in force now

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Season · when survey operations happen here

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Timeline

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.