Surveys
Survey operations 290900Z aug thru 072200Z jan 27 by M/V tupan III in area bound by 25-34.77S 048-20.62W,…
South Atlantic · Brazil · HYDROLANT 1698/26
- issued
- 2026-08-29 00:55Z
- status
- cancelled 2026-08-31 19:00Z (dropped from inforce)
- self-cancels
- 2027-01-07 23:00Z
- sea
- South Atlantic Ocean
- position
- -25.554, -48.328
- vessel
- M/V TUPAN III
- source
- nga_inforce · first seen 2026-08-31 19:47Z
Original warning text
SOUTH ATLANTIC. BRAZIL. 1. SURVEY OPERATIONS 290900Z AUG THRU 072200Z JAN 27 BY M/V TUPAN III IN AREA BOUND BY 25-34.77S 048-20.62W, 25-29.89S 048-41.14W, 25-28.14S 048-23.77W, 25-26.51S 048-21.20W, 25-37.37S 048-04.42W, 25-37.51S 048-11.49W, 25-42.88S 048-04.28W, 25-39.25S 048-11.45W, 25-43.02S 048-11.36W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 072300Z JAN 27. 281611Z AUG 26.
This area · survey operations
187 within 180 nm since 1999 · 3 in the last 12 months · 1 in force now
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- Underwater operations 1000Z to 2000Z daily until 25 aug by vessel nomar in 24-07.27S 046-09.30W2026-08-20
- Scientific bouy, yellow, fl y 20 sec established in 27-24.38S 047-15.92W2026-02-27
- Underwater operations 1100Z to 2000Z daily 06 apr thru 05 may in 24-07.11S 046-08.76W2024-04-06
- Survey operations in progress until 30 apr by M/V ramform victory towing ten 8800 meter long cables in area…2024-04-03
- Survey operations in progress until 31 mar by M/V ramform victory towing ten 8800 meter long cables in area…2024-03-07
- Underwater operations 1100Z to 2000Z daily 28 feb thru 26 mar by M/V big john VI, M/V rodrigo neto I and M/V…2024-02-28
Season · when survey operations happen here
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month of issue, all years in the archive
Nearby now · within 120 nm
- Laje da conceicao light 24-14.18S 046-41.46W unlit until 24 sepNav aids · 119.2 nm
Worldwide now
70 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.