Surveys
Underwater operations in progress during daylight hours until 15 mar by M/V tethys II in vicinity: a. 43-04N…
HYDROLANT 484/99
- issued
- 1999-03-11 10:10Z
- status
- cancelled 1999-03-16 00:00Z (archive)
- cancels
- HYDROLANT 435/99
- sea
- Mediterranean Sea - Western Basin
- position
- 43.211, 4.994
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS DURING DAYLIGHT HOURS UNTIL 15 MAR BY M/V TETHYS II IN VICINITY: A. 43-04N 005-07E. B. 43-20N 004-56E. C. 43-14N 004-56E. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 435/99. 3. CANCEL THIS MSG 16 MAR.
This area · survey operations
116 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now
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- Survey operations 22 jul thru 13 aug by M/V tethys II, M/V l`europe, and M/V sagitta III in area bound by…2023-07-20
- Scientific buoys temporarily established by M/V thalassa 15 jul thru 30 aug in: a. dyfamed, 43-25.00N…2023-07-11
- Survey operations 120900Z to 172359Z apr by M/V l'atalante in vicinity of trackline joining 40-56.00N…2023-04-11
- Survey operations in progress until 111700Z apr by M/V tethys II in vicinity of trackline joining 41-22.0N…2023-04-09
- Survey operations in progress until 111800Z apr by M/V tethys II in vicinity of trackline joining 40-07.0N…2023-04-09
- Survey operations 041700Z to 062359Z apr by M/V l'atalante in vicinity of trackline joining 40-46.00N…2023-04-03
Season · when survey operations happen here
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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
83 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.