Surveys

Survey operations 15 thru 22 feb by M/V sw diamond towing two 225 meter long cables in area bound by…

Western South Atlantic · HYDROLANT 446/22

issued: 2022-02-14 21:35Z
status: cancelled 2022-02-23 00:01Z (archive)
cancels: HYDROLANT 380/22
authority: NAVAREA V COASTAL S 132/22 141909Z FEB 22.
sea: South Atlantic Ocean
position: -25.091, -42.831
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
DNC 01.
1. SURVEY OPERATIONS 15 THRU 22 FEB BY M/V SW DIAMOND
   TOWING TWO 225 METER LONG CABLES IN AREA BOUND BY
   24-56.63S 042-03.07W, 25-02.90S 042-46.53W,
   25-06.30S 042-44.23W, 25-14.47S 042-41.27W,
   25-19.35S 042-42.38W, 25-04.90S 043-11.67W,
   25-00.13S 043-08.87W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 380/22.
3. CANCEL THIS MSG 23 FEB 22.

This area · survey operations

573 within 180 nm since 2000 · 3 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 in progress until 15 feb by M/V sw diamond towing two 225 meter long cables in area bound…cancels · 2022-02-08
Survey operations in progress until 15 feb by M/V sw diamond towing two 225 meter long cables in area bound…replaced · 2022-02-08

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 · 31.9 nm
Hazardous operations 0800Z to 2100Z daily 18 thru 20 aug in area within ten miles of 25-06.00S 041-13.00WExercises · 87.7 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.