Surveys
Underwater research operations 110800Z to 152000Z dec by M/V alliance in area between 40-40N 40-00N and…
HYDROLANT 3119/01
- issued
- 2001-12-08 01:54Z
- status
- cancelled 2001-12-15 21:00Z (archive)
- self-cancels
- 2001-12-15 21:00Z
- authority
- LA SPEZIA 462/01 071242Z DEC 01
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER RESEARCH OPERATIONS 110800Z TO 152000Z DEC BY M/V ALLIANCE IN AREA BETWEEN 40-40N 40-00N AND 012-00E 011-20E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 152100Z DEC.
Activity windows · 1 in this warning
| opens (UTC) | closes (UTC) | local | length |
|---|---|---|---|
| 2001-12-11 08:00Z | 2001-12-15 20:00Z | — | 108 h |
Parsed from the warning text; outside these windows the area is normally not active, but the warning stays in force until cancelled.
Nearby now · within 120 nm
Nothing else in force within 120 nm.
Worldwide now
84 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.