Other

Six meter tree partially submerged and adrift in vicinity 11-31.03S 097-30.88E at 100621Z oct

Indian Ocean · HYDROPAC 2831/22

What this record establishes

Archived notice · 2022-10-11 09:01Z

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) · JRCC AUSTRALIA 6815/22 100806Z OCT 22.. Issued 2022-10-10 08:39Z. 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 -11.517, 97.515. 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

Current notices and reporting history in the Indian Ocean →

issued
2022-10-10 08:39Z
status
Archived notice
self-cancels
2022-10-13 08:36Z
authority
JRCC AUSTRALIA 6815/22 100806Z OCT 22.
issued by
JRCC AUSTRALIA
sea
Indian Ocean
position
-11.517, 97.515
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN INDIAN OCEAN.
COCOS (KEELING) ISLANDS.
DNC 03.
1. SIX METER TREE PARTIALLY SUBMERGED AND
   ADRIFT IN VICINITY 11-31.03S 097-30.88E AT
   100621Z OCT.
2. CANCEL THIS MSG 130836Z OCT 22.

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.
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 · other warnings

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

00
05
10
15
20
22

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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

23 other warnings listed in force · see all

Record snapshot 2026-09-28 08:09Z; source collection times vary.

Other

Everything the classifier did not place elsewhere. All current other warnings →

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.