Surveys
Underwater operations in progress until 312000Z jan in areas within: a. 1000 yards of 44-04N 009-44E
HYDROLANT 190/99
- issued
- 1999-01-29 01:08Z
- status
- cancelled 1999-01-31 00:00Z (archive)
- self-cancels
- 1999-01-31 21:00Z
- cancels
- HYDROLANT 2296/98
- sea
- Tyrrhenian Sea
- position
- 43.844, 9.794
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS IN PROGRESS UNTIL 312000Z JAN IN AREAS WITHIN: A. 1000 YARDS OF 44-04N 009-44E. B. 2000 YARDS OF 43-44N 009-47E. C. 2000 YARDS OF 43-44N 009-52E. 2. CANCEL HYDROLANT 2296/98. 3. CANCEL THIS MSG 312100Z JAN.
This area · survey operations
188 within 180 nm since 1998 · 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
- Survey operations in progress until 19 jul by M/V five in area bound by 43-49.26N 009-54.46E, 44-09.71N…2023-07-18
- Survey operations in progress until 30 mar by M/V ocean link along trackling joining 43-14.09N 007-46.66E,…2023-03-17
- Survey operations 02 thru 17 feb by M/V tethys II, M/V l europe and M/V sagitta III in area bound by…2023-01-30
- Survey operations 07 thru 15 jul by M/V thetys II, M/V l'europe and M/V saggitta III in area bound by…2022-07-05
- Survey operations 27 may thru 06 jun by M/V thetys II, M/V l`europe and M/V saggitta III in area bound by…2022-05-26
Season · when survey operations happen here
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month of issue, all years in the archive
Timeline
- Isola palmaiola light 42-51.9N 010-28.6E at reduced intensityreplaced · 1998-11-30
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.