A survey vessel in Makassar Strait, Indonesia, is towing twelve 10,050-meter cables until further notice; wide berth requested.
Makassar Strait · HYDROPAC 241/26
What this record establishes
Listed in force
The latest collected record lists this warning as active. This is the status of the notice, not a live observation of conditions at the location.
- Source and dates
- NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-01-27 10:37Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-10-01 05:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Makassar Strait. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Current notices and reporting history in the Makassar Strait →
- issued
- 2026-01-27 10:37Z
- status
- Listed in force
- sea
- Makassar Strait
- position
- -0.730, 118.079
- vessel
- M/V RAMFORM SOVEREIGN · 63 messages
- nearest port
- Senipah · 55 nm
- source
- NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z
Original warning text
MAKASSAR STRAIT. INDONESIA. DNC 04, DNC 11. SURVEY OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V RAMFORM SOVEREIGN TOWING 12 10050 METER LONG CABLES IN AREA BOUND BY 00-10.30S 117-49.00E, 00-10.30S 117-50.20E, 00-52.50S 117-50.20E, 01-30.60S 117-26.90E, 01-33.70S 117-31.80E, 01-44.20S 117-25.40E, 01-50.30S 117-36.30E, 01-55.30S 117-45.70E, 01-23.40S 118-03.70E, 01-20.80S 117-59.40E, 01-16.50S 118-00.70E, 01-16.50S 118-08.60E, 01-33.60S 118-08.60E, 01-33.60S 118-33.50E, 00-47.90S 118-33.70E, 00-48.00S 118-27.70E, 00-14.00N 118-28.00E, 00-14.00N 118-10.10E, 00-31.90N 118-10.10E, 00-32.00N 117-47.80E. WIDE BERTH REQUESTED.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Survey operations
- A research or survey vessel is mapping the seabed or water column, often while towing equipment.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
Conditions at the position · now
loading…
MET Norway · NOAA WaveWatch III · HYCOM · GEBCO 2020 · model data at the centroid, not an observation
Collected reports in this area · survey operations
1 within 180 nm since 2026 · 1 in the last 12 months · 1 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
Worldwide in the collected sources
55 survey operations listed in force · see all
Record snapshot 2026-10-01 05:25Z; 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.