Oceanographic buoy, yellow, fl y 20 sec established in 43-37N 013-51E
Adriatic Sea · HYDROLANT 540/99
What this record establishes
Archived notice · 2001-01-05 12:10Z
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 1999-03-19 18:30Z. 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
- Adriatic Sea. The parsed report position is 43.617, 13.850. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
- issued
- 1999-03-19 18:30Z
- status
- Archived notice
- sea
- Adriatic Sea
- position
- 43.617, 13.850
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
CHART 54105 (2ND ED). OCEANOGRAPHIC BUOY, YELLOW, FL Y 20 SEC ESTABLISHED IN 43-37N 013-51E.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Scientific mooring
- Instruments anchored to the seabed and held up by floats, sometimes just below the surface, left for months to measure the ocean.
- Light characteristic
- The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
- 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.
Collected reports in this area · survey operations
97 within 180 nm since 1997 · 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.
- Underwater operations 16 thru 31 may along trackline joining 43-24.77N 007-54.03E, 43-27.27N 007-57.26E,…2020-05-15
- Survey operations in progress until 15 may by NR2 saildrones along trackline joining 43-24.8N 007-54.0E,…2020-04-10
- Underwater operations 04 thru 31 oct within 500 meters of 44-40.27N 013-12.48E2015-10-03
- Underwater operations in progress until 202359Z dec by M/V northern explorer in area bound by 44-40.5N…2013-12-16
- Underwater operations in progress until further notice by M/V northern explorer in area bound by 44-44N…2013-12-11
- Underwater operations in progress until further notice by M/V northern explorer in area bound by 42-06.1N…2013-11-16
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 21:12Z; source collection times vary.
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.