Surveys

Underwater operations 310900Z aug to 312000Z oct by M/V normand cutter in: a. 24-18.02S 042-43.62W

Brazil-south Coast · HYDROLANT 1634/10

issued: 2010-08-31 05:49Z
status: cancelled 2010-09-23 01:11Z (archive)
self-cancels: 2010-10-31 21:00Z
authority: NAVAREA V S 1216/10 310510Z AUG 10.
sea: South Atlantic Ocean
position: -24.326, -43.554
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-SOUTH COAST.
1. UNDERWATER OPERATIONS 310900Z AUG TO 312000Z OCT
   BY M/V NORMAND CUTTER IN:
   A. 24-18.02S 042-43.62W.
   B. 24-21.10S 044-22.90W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 312100Z OCT.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2010-08-31 09:00Z	2010-10-31 20:00Z	—	1475 h

Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.

This area · survey operations

576 within 180 nm since 2000 · 4 in the last 12 months · 1 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Underwater operations in progress until 312030Z oct by M/V normand cutter and M/V chloe candies in 24-21.08S…cancelled by · 2010-09-23

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 · 60.5 nm
Ponta dos meros light 23-13.57S 044-20.83W unlit until 26 sepNav aids · 79.1 nm
Odas buoy established in 24-06.36S 045-38.78WNav aids · 115.3 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.