Derelicts

Derelict six meter F/V, partially submerged and adrift in 12-15.57S 122-44.48E at 160323Z jun

Indian Ocean · HYDROPAC 1775/21

What this record establishes

Archived notice · 2021-06-19 07:06Z

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) · SEA SAFETY 46/21 160528Z JUN 21.. Issued 2021-06-16 07:06Z. 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
Indian Ocean. The parsed report position is -12.259, 122.741. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Current notices and reporting history in the Indian Ocean →

issued
2021-06-16 07:06Z
status
Archived notice
self-cancels
2021-06-19 07:06Z
authority
SEA SAFETY 46/21 160528Z JUN 21.
issued by
SEA SAFETY
sea
Indian Ocean
position
-12.259, 122.741
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN INDIAN OCEAN.
AUSTRALIA-NORTHWEST COAST.
DNC 04.
1. DERELICT SIX METER F/V, PARTIALLY SUBMERGED
   AND ADRIFT IN 12-15.57S 122-44.48E AT
   160323Z JUN.
2. CANCEL THIS MSG 190706Z JUN 21.

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.
Derelict
An abandoned vessel still afloat and drifting, with no one on board.
Semi-submerged
Floating at or just below the surface, so hard to see by eye or radar.
Adrift
Loose and moving with wind and current — a vessel, container, buoy, log or anything else no longer secured.
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.
Date-time group (DTG)
A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
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 · derelict & adrift vessels

97 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20
23

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

J
F
M
A
M
J
J
A
S
O
N
D

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

5 derelict & adrift vessels listed in force · see all

Record snapshot 2026-09-30 02:14Z; source collection times vary.

Derelicts

Abandoned, disabled or drifting vessels. All current derelict & adrift vessels →

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.