Surveys

Survey operations are in progress until 09 July 2027 by vessel BGP Dragon towing a 250-meter cable near Brazil; wide berth requested.

South Atlantic · Brazil · HYDROLANT 1529/26

issued: 2026-08-08 00:44Z
status: in force
self-cancels: 2027-07-10 00:01Z
cancels: HYDROLANT 1521/26
position: -22.274, -40.026
source: nga_inforce · first seen 2026-08-17 13:41Z

Original warning text

SOUTH ATLANTIC.
BRAZIL.
1. SURVEY OPERATIONS IN PROGRESS UNTIL
   09 JUL 27 BY M/V BGP DRAGON TOWING
   250 METER LONG CABLE IN AREA BOUND BY
   22-32.79S 040-09.79W, 22-30.18S 040-14.02W,
   22-22.20S 040-14.72W, 22-18.56S 040-12.13W,
   22-14.72S 040-10.95W, 22-08.19S 040-06.66W,
   22-04.65S 040-06.28W, 22-01.32S 040-03.91W,
   22-00.21S 040-01.41W, 21-58.95S 039-59.82W,
   21-57.94S 039-56.98W, 21-59.51S 039-51.99W,
   22-02.26S 039-47.32W, 22-06.87S 039-46.80W,
   22-12.18S 039-50.95W, 22-12.92S 039-51.99W,
   22-21.80S 039-57.86W, 22-25.83S 039-56.22W,
   22-28.41S 039-55.62W, 22-34.61S 040-00.11W,
   22-35.52S 040-05.16W.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1521/26.
3. CANCEL THIS MSG 100001Z JUL 27.

Conditions at the position · now

loading…

Open-Meteo Marine / Open-Meteo · GEBCO 2020 · model data at the centroid, not an observation

This area · survey operations

736 within 180 nm since 2000 · 15 in the last 12 months · 15 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Nearby now · within 120 nm

Underwater operations in progress until 170259Z aug in 22-22.48S 040-25.05WSurveys · 22.6 nm
Underwater operations 1000Z to 2000Z daily until 02 nov 26 by M/V fugro vaquita in: a. 22-26.32S 040-25.47WSurveys · 24.1 nm
Underwater operations in progress until 140001Z nov by M/V fugro vaquita in area bound by 22-03.00S…Surveys · 40.9 nm
Underwater operations 281000Z jul to 192100Z aug by M/V umi polaris in area bound by 21-53.65S 040-49.70W,…Surveys · 46.2 nm
Underwater operations in progress until 312300Z aug by M/V fugro vaquita in area bound by 21-35.43S…Surveys · 47.8 nm
Survey operations in progress until 312200Z aug in area bound by 21-36.17S 041-00.00W, 21-36.05S 040-37.59W,…Surveys · 51 nm
Odas buoy temporarily established until 13 apr 27 in 21-34.20S 040-43.62WNav aids · 57.5 nm
RACON at cabo sao tome light 22-02.52S 041-03.17W off air until 28 sepNav aids · 58.8 nm
Survey operations 10 aug 26 thru 08 mar 27 by tug mce navegacao I in area bound by 22-48.38S 041-08.21W,…Surveys · 67.5 nm
Barra de itabapoana light 21-18.80S 040-57.90W unlit until 08 sep 26Nav aids · 77.9 nm
Underwater operations 1100Z to 2100Z daily 13 thru 22 aug by M/V comando b and M/V am kirti in 20-23.90S…Surveys · 112.9 nm
Underwater operations 1100Z to 2100Z daily 12 thru 21 aug by M/V comando b and M/V faneromeni in 20-23.67S…Surveys · 113.1 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.