Surveys

Survey operations 26 jul thru 01 aug by M/V sw diamond towing nine 225 meter long cables in area bound by…

Western South Atlantic · HYDROLANT 1847/22

issued: 2022-07-25 03:36Z
status: cancelled 2022-08-01 06:12Z (archive)
self-cancels: 2022-08-02 00:01Z
authority: NAVAREA V 369/22 250022Z JUL 22.
sea: South Atlantic Ocean
position: -25.340, -42.727
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 26 JUL THRU 01 AUG
   BY M/V SW DIAMOND TOWING NINE 225 METER
   LONG CABLES IN AREA BOUND BY
   25-12.55S 042-46.21W, 25-18.89S 042-33.64W,
   25-27.47S 042-32.90W, 25-28.10S 042-33.32W,
   25-28.53S 042-39.51W, 25-22.19S 042-52.11W,
   25-15.90S 042-57.32W, 25-15.47S 042-56.70W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 020001Z AUG 22.

This area · survey operations

572 within 180 nm since 2000 · 1 in the last 12 months · 1 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations 02 thru 09 aug by M/V sw diamond towing nine 225 meter long cables in area bound by…cancelled by · 2022-08-01

Nearby now · within 120 nm

Hazardous operations in progress until 060400Z jun 27 in area bound by 24-39.87S 042-29.30W, 24-39.78S…Exercises · 43.2 nm
Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 83.3 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.