Surveys

Hydrographic survey in progress until 271200Z mar by M/V rou 22 oyarvide in area bound by 34-42.0S…

HYDROLANT 585/03

issued: 2003-03-19 04:48Z
status: cancelled 2003-03-27 13:00Z (archive)
self-cancels: 2003-03-27 13:00Z
cancels: HYDROLANT 538/03
authority: NAVAREA VI 120/03 190245Z MAR 03
sea: South Atlantic Ocean
position: -34.646, -53.626
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. HYDROGRAPHIC SURVEY IN PROGRESS UNTIL 271200Z MAR BY
   M/V ROU 22 OYARVIDE IN AREA BOUND BY
   34-42.0S 053-45.0W, 34-47.0S 053-40.7W,
   34-35.8S 053-30.0W, 34-30.5S 053-34.7W.
   1.5 MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 538/03.
3. CANCEL THIS MSG 271300Z MAR.

This area · survey operations

116 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Hydrographic survey 111100Z to 220259Z mar by M/V rou 22 oyarvide in area bound by 34-42.0S 053-45.0W,…cancels · 2003-03-11
Hydrographic survey 111100Z to 220259Z mar by M/V rou 22 oyarvide in area bound by 34-42.0S 053-45.0W,…replaced · 2003-03-11

Nearby now · within 120 nm

Radiobeacon at chui light 33-44.6S 053-22.5W off air until 17 jan 27Nav aids · 55.6 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.