Survey operations in progress until 27 sep by M/V urania towing equipment and cables in area bound by 45-20N…
Adriatic Sea · HYDROLANT 1877/99
What this record establishes
Archived notice · 1999-09-28 06:00Z
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) · NAVAREA III 379/99 AOR-E EGC #731 031520Z SEP 99. Issued 1999-09-03 17:18Z. 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 map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 1999-09-03 17:18Z
- status
- Archived notice
- authority
- NAVAREA III 379/99 AOR-E EGC #731 031520Z SEP 99
- NAVAREA
- NAVAREA III · named as the source of this relay
- sea
- Adriatic Sea
- position
- 43.361, 15.316
- vessel
- M/V URANIA · 135 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SURVEY OPERATIONS IN PROGRESS UNTIL 27 SEP BY M/V URANIA TOWING EQUIPMENT AND CABLES IN AREA BOUND BY 45-20N 012-30E, 43-00N 014-30E, 42-10N 015-30E, 42-10N 016-30E, 42-44N 017-57E. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 28 SEP.
Reading this warning
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- 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.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · survey operations
70 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.
- Survey operations 07 nov thru 31 dec by M/V polar empress towing one five mile long cable in area bound by…2018-11-02
- 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 along trackline joining…2013-12-06
- Underwater operations in progress until further notice by M/V northern explorer along trackline joining…2013-12-04
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 18:11Z; 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.