Cable ops

Seismic survey 180300Z feb to 210300Z feb by vessel cgg harmattan towing six 6000 meter long cables in area…

HYDROLANT 341/05

issued: 2005-02-18 13:31Z
status: cancelled 2005-02-20 05:44Z (archive)
self-cancels: 2005-02-21 04:00Z
authority: NAVAREA V 158/05 18 FEB 05.
sea: South Atlantic Ocean
position: -4.415, -36.122
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SEISMIC SURVEY 180300Z FEB TO 210300Z FEB BY VESSEL CGG HARMATTAN
   TOWING SIX 6000 METER LONG CABLES IN AREA BOUND BY
   04-00S 037-20W, 04-00S 035-08W, 04-54S 035-08W,
   04-54S 036-30W, 04-20S 037-20W. FOUR MILE BERTH REQUESTED.
2. CANCEL THIS MSG 210400Z FEB.

Activity windows · 1 in this warning

opens (UTC)	closes (UTC)	local	length
2005-02-18 03:00Z	2005-02-21 03:00Z	—	72 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 · cable & pipeline work

280 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

Season · when cable & pipeline work happen here

month of issue, all years in the archive

Timeline

Seismic survey in progress until 230300Z feb by M/V cgg harmattan towing six 6000 meter long cables in area…cancelled by · 2005-02-20

Nearby now · within 120 nm

Odas buoy bravo rn-l temporarily established until 20 oct in 04-53.00S 035-46.01WNav aids · 35.3 nm
Odas buoy established in 05-09.46S 035-09.81WNav aids · 72.7 nm
Hazardous operations 03 aug thru 11 sep in area bound by 05-42.53S 034-45.02W, 06-09.83S 034-46.82W,…Exercises · 118.6 nm

Worldwide now

41 cable & pipeline work in force · see all

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.