Surveys

Survey operations in progress until 06 oct by M/V sw diamond towing nine 225 meter long cables in area bound…

Western South Atlantic · HYDROLANT 2510/22

issued: 2022-10-04 04:35Z
status: cancelled 2022-10-07 00:01Z (archive)
self-cancels: 2022-10-07 00:01Z
cancels: HYDROLANT 2503/22
authority: NAVAREA V 505/22 040319Z OCT 22.
sea: South Atlantic Ocean
position: -25.522, -42.837
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 06 OCT
   BY M/V SW DIAMOND TOWING NINE 225 METER
   LONG CABLES IN AREA BOUND BY
   25-25.07S 043-01.81W, 25-36.97S 042-38.21W,
   25-37.60S 042-38.62W, 25-25.72S 043-02.18W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 2503/22.
3. CANCEL THIS MSG 070001Z OCT 22.

This area · survey operations

570 within 180 nm since 2000 · 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

Survey operations in progress until 04 oct by M/V sw diamond towing nine 225 meter long cables in area bound…cancels · 2022-10-03
Survey operations in progress until 04 oct by M/V sw diamond towing nine 225 meter long cables in area bound…replaced · 2022-10-03

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 · 55.4 nm
Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 91.5 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.