Surveys

Underwater operations 1100Z to 1900Z daily 01 thru 06 jun by M/V texas and M/V seamaster I in 05-42.08S…

Western South Atlantic · Brazil-northeast Coast · HYDROLANT 1472/21

issued
2021-05-31 20:44Z
status
cancelled 2021-06-06 20:00Z (archive)
self-cancels
2021-06-06 20:00Z
authority
NAVAREA V COASTAL E 414/21 311923Z MAY 21.
position
-5.701, -35.075
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
BRAZIL-NORTHEAST COAST.
DNC 01.
1. UNDERWATER OPERATIONS 1100Z TO 1900Z DAILY
   01 THRU 06 JUN BY M/V TEXAS AND M/V SEAMASTER I
   IN 05-42.08S 035-04.50W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 062000Z JUN 21.

This area · survey operations

66 within 180 nm since 2000 · 0 in the last 12 months · 0 in force now

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05
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24

Season · when survey operations happen here

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M
J
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month of issue, all years in the archive

Nearby now · 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.