Surveys

Survey operations in progress until 20 sep by M/V thetis in area between 40-01.3N 40-20.6N and 013-46.7E…

HYDROLANT 2437/01

issued: 2001-09-09 02:20Z
status: cancelled 2001-09-21 00:00Z (archive)
cancels: HYDROLANT 2436/01
authority: NAVAREA III 480/01 090003Z SEP 01
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS IN PROGRESS UNTIL 20 SEP BY M/V THETIS
   IN AREA BETWEEN 40-01.3N 40-20.6N AND 013-46.7E 014-54.9E.
2. CANCEL HYDROLANT 2436/01.
3. CANCEL THIS MSG 21 SEP.

Timeline

Survey operations in progress until 20 sep by M/V thetis vicinity of trackline between 41-01.3N 013-46.7E…cancels · 2001-09-09
Survey operations in progress until 20 sep by M/V thetis vicinity of trackline between 41-01.3N 013-46.7E…replaced · 2001-09-09

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 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.