Dredging operations in progress until further notice by M/V lange wapper, M/V M.P.R.1 and M/V musa in area…
Baltic Sea · HYDROLANT 853/12
What this record establishes
Archived notice · 2012-04-21 09:58Z
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) · LITHUANIAN 22/12 181310Z APR 12.. Issued 2012-04-18 17:15Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
- issued
- 2012-04-18 17:15Z
- status
- Archived notice
- authority
- LITHUANIAN 22/12 181310Z APR 12.
- issued by
- LITHUANIAN
- sea
- Baltic Sea
- position
- 55.915, 21.024
- vessels
- M/V LANGE WAPPER · 2 messagesM/V MUSA
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN BALTIC SEA. LITHUANIA. DREDGING OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V LANGE WAPPER, M/V M.P.R.1 AND M/V MUSA IN AREA BOUND BY 55-55.043N 021-01.302E, 55-55.042N 021-01.609E, 55-54.770N 021-01.609E, 55-54.770N 021-01.302E. WIDE BERTH REQUESTED.
Reading this warning
- Dredging
- A dredger is deepening a channel or moving sediment, often with floating or submerged pipelines to the shore.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
Collected reports in this area · survey operations
9 within 180 nm since 2009 · 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 in progress until 302359Z sep by M/V mintis in area bound by 55-17.2N 020-57.2E, 55-17.7N…2017-09-27
- Survey operations 20 and 21 aug by M/V askholmen along trackline between 55-37.92N 021-05.83E and 55-38.03N…2014-08-18
- Underwater operations in progress until further notice by M/V hein in area bound by 55-43.76N 021-03.54E,…2014-04-11
- Underwater operations in progress until 15 apr by M/V blue castor along trackline joining 55-37.97N…2014-03-31
- Underwater operations 08 thru 11 dec by M/V suduvis in area bound by 55-43.69N 021-04.60E, 55-43.81N…2009-12-04
- Survey operations by M/V suduvis: a. in progress until 11 sep in area bound by 56-00.00N 020-40.00E,…2009-09-08
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
56 survey operations listed in force · see all
Record snapshot 2026-10-03 03:49Z; 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.