Towing

Geophysical operations 05 thru 19 aug by M/V bibby tethra towing 500 meter long cable along trackline…

Baltic Sea · HYDROLANT 1843/13

What this record establishes

Archived notice · 2013-08-20 00:01Z

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) · LITHUANIA 49/13 29 JUL 13.. Issued 2013-07-29 16:40Z. 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: Baltic Sea. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Current notices and reporting history in the Baltic Sea →

issued: 2013-07-29 16:40Z
status: Archived notice
authority: LITHUANIA 49/13 29 JUL 13.
issued by: LITHUANIA
sea: Baltic Sea
position: 55.789, 20.081
vessel: M/V BIBBY TETHRA · 2 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN BALTIC SEA.
LITHUANIA.
1. GEOPHYSICAL OPERATIONS 05 THRU 19 AUG BY M/V BIBBY TETHRA
   TOWING 500 METER LONG CABLE ALONG TRACKLINE BETWEEN
   55-56.9N 019-03.3E AND 55-37.8N 021-06.4E.
   ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 20 AUG 13.

Reading this warning

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.
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.
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.

All warning terms →

Collected reports in this area · tows

1 within 180 nm since 2013 · 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.

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

0 tows listed in force · see all

Record snapshot 2026-10-03 08:54Z; source collection times vary.

Towing

Vessels under tow with long or unlit tow lines. All current tows →

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.