Surveys

Underwater operations in progress until further notice by: a. M/V gariep in 28-39.5S 015-52.3E

Eastern South Atlantic · South Africa · HYDROLANT 1153/22

issued: 2022-04-27 08:37Z
status: cancelled 2022-04-29 16:28Z (archive)
cancels: HYDROLANT 1031/22
authority: NAVAREA VII 242/22 270749Z APR 22.
position: -27.788, 15.784
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN SOUTH ATLANTIC.
SOUTH AFRICA.
DNC 01.
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL
   FURTHER NOTICE BY:
   A. M/V GARIEP IN 28-39.5S 015-52.3E.
   B. M/V MATHILDA GEM IN 28-43.4S 016-29.8E.
   C. M/V YA TOIVO IN 25-58.9S 014-59.0E.
   TWO MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 1031/22.

This area · survey operations

262 within 180 nm since 2003 · 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

Underwater operations in progress until further notice by: a. M/V gariep in 28-39.5S 015-52.3Ecancels · 2022-04-11
Underwater operations in progress until further notice by: a. M/V gariep in 28-39.5S 015-52.3Ereplaced · 2022-04-11
HYDROLANT warnings in force as of 291618Z apr 22: 1175/22, 1173/22, 1170/22, 1168/22, 1164/22, 1160/22,…cancelled by · 2022-04-29

Nearby now · within 120 nm

Nothing else in force 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.