Debris

Ten meter long log adrift in vicinity 10-29.8S 142-21.1E at 070048Z feb

Coral Sea · HYDROPAC 514/18

What this record establishes

Archived notice · 2018-02-10 01:57Z

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 11/18 070130Z FEB 18.. Issued 2018-02-07 01:57Z. 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
Coral Sea. The parsed report position is -10.497, 142.352. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

These reports were linked by category and sea, with positions within 30 nautical miles and issue dates within 30 days of another report's recorded in-force span. Links can extend through other members, so the full group can cover a larger area or period. Proximity does not confirm that they describe one incident.

  1. HYDROPAC 496/182018-02-06 · Archived notice
  2. HYDROPAC 514/18 · this notice2018-02-07 · Archived notice
Compare all 2 notices, changes and original texts →

Current notices and reporting history in the Coral Sea →

issued
2018-02-07 01:57Z
status
Archived notice
self-cancels
2018-02-10 01:57Z
authority
SEA SAFETY 11/18 070130Z FEB 18.
issued by
SEA SAFETY
sea
Coral Sea
position
-10.497, 142.352
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

TORRES STRAIT.
AUSTRALIA-NORTHEAST COAST.
DNC 05.
1. TEN METER LONG LOG ADRIFT IN VICINITY
   10-29.8S 142-21.1E AT 070048Z FEB.
2. CANCEL HYDROPAC 496/18.
3. CANCEL THIS MSG 100157Z FEB 18.

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.
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.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
HYDROPAC
The U.S. long-range warning series for the Pacific outside NAVAREA XII and for the Indian Ocean, Persian Gulf and adjoining seas.
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 · drifting objects

31 within 180 nm since 2000 · 0 in the last 12 months · 0 listed in force now

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

3 drifting objects listed in force · see all

Record snapshot 2026-10-02 01:39Z; source collection times vary.

Debris

Logs, buoys, mooring gear and other objects adrift. All current drifting objects →

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.