Hydrographic operations in progress until further notice by M/V alliance along trackline joining 40-27N…
Ionian Sea · HYDROLANT 383/99
What this record establishes
Archived notice · 1999-02-24 00:00Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05). Issued 1999-02-23 16:20Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Ionian Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- issued
- 1999-02-23 16:20Z
- status
- Archived notice
- sea
- Ionian Sea
- position
- 39.750, 16.879
- vessel
- M/V ALLIANCE · 61 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. HYDROGRAPHIC OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V ALLIANCE ALONG TRACKLINE JOINING 40-27N 017-00E, 40-19N 016-51E, 40-05N 016-45E, 39-59N 016-45E, 39-57N 016-50E, 39-50N 016-50E, 39-50N 016-36E, 39-42N 016-33E, 39-38N 016-46E, 39-27N 017-07E, 39-25N 017-11E, 39-02N 017-13E. 2. CANCEL HYDROLANT 377/99.
Reading this warning
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · other warnings
52 within 180 nm since 1998 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Naval operations 250600Z feb to 081800Z mar in area bound by 37-00.00N 011-00.00E, 39-00.00N 011-00.00E,…2024-02-20
- 20 meter vessel requesting assistance in 38-42.00N 018-53.00E at 240637Z nov2022-11-24
- Mine in 40-39.78N 019-08.86E2018-07-06
- Mine clearing operations 04 thru 10 may in bay of vlore (40-27-06N 019-28-40E)2018-05-03
- Vessel in need of assistance in 37-22N 017-48E2016-03-29
- 12 meter vessel, orange hull, requesting assistance in 37-46.5N 019-02.0E2014-04-08
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
21 other warnings listed in force · see all
Record snapshot 2026-10-03 23:29Z; source collection times vary.
Other
Everything the classifier did not place elsewhere. All current other warnings →
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.