Cable ops
Seismic survey 161100Z to 171700Z nov by M/V northern horizon along a trackline joining 03-41.7S 038-09.3W,…
HYDROLANT 2451/99
- issued
- 1999-11-15 09:40Z
- status
- cancelled 1999-11-17 18:00Z (archive)
- self-cancels
- 1999-11-17 18:00Z
- cancels
- HYDROLANT 2401/99
- authority
- NAVAREA V 994/99 150407Z NOV 99; WZ 2034/99; NAVAREA II 347/99
- sea
- South Atlantic Ocean
- position
- -3.515, -37.967
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY 161100Z TO 171700Z NOV BY M/V NORTHERN HORIZON ALONG A TRACKLINE JOINING 03-41.7S 038-09.3W, 03-34.2S 037-48.0W, 03-37.0S 037-38.2W, 03-41.8S 038-18.0W, 03-00.0S 037-43.0W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2401/99(37) AND 2410/99(37), OPERATIONS COMPLETED. 3. CANCEL THIS MSG 171800Z NOV.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 1999-11-16 11:00Z | 1999-11-17 17:00Z | — | 30 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
357 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
99
00
05
10
15
20
- Cable operations in progress until 130259Z feb 21 by cableship ile de brehat and cableship peter faber along…2020-12-30
- Cable operations 300300Z nov to 130259Z feb 21 by cableship ile de brehat along trackline joining 03-44.36S…2020-11-29
- Seismic survey in progress until 26 feb by M/V ramform atlas towing 14 9000 meter long cables in area bound…2016-01-15
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…2015-10-10
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 1400 meter long cables in area…2015-09-16
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…2015-09-10
Season · when cable & pipeline work happen here
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F
M
A
M
J
J
A
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month of issue, all years in the archive
Timeline
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
40 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.