Nav aids

Twelve six-meter yellow buoys with flashing white light every 3 seconds are established in Great Australian Bight, Australia, near 38-46S 142-48.8E; three mile berth requested.

Great Australian Bight · HYDROPAC 1863/26

What this record establishes

Cancelled notice · 2026-08-21 15:40Z

This notice disappeared from the issuing source's in-force list. No explicit recovery or all-clear is established by that removal.

Source and dates: NGA MSI in-force warnings (DailyMem*.txt). Issued 2026-06-29 01:11Z. First collected 2026-08-17 13:41Z; last seen in collection 2026-08-23 15:17Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: Great Australian Bight. The parsed report position is -38.767, 142.813 with a 2.0 nm radius. 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 Great Australian Bight →

issued: 2026-06-29 01:11Z
status: Cancelled notice
sea: Great Australian Bight
position: -38.767, 142.813 · r 2.0 nm
nearest port: Portland · 62 nm
source: NGA MSI in-force warnings (DailyMem*.txt) · first seen 2026-08-17 13:41Z

Original warning text

GREAT AUSTRALIAN BIGHT.
AUSTRALIA.
12 SIX METER BUOYS, YELLOW, FL W 3 SEC,
ESTABLISHED IN AREA WITHIN TWO MILES OF
38-46.00S 142-48.80E.
THREE MILE BERTH REQUESTED.

Reading this warning

Light characteristic: The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
Within a radius of: A circular area — every position within a stated distance of a point.
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.

All warning terms →

Collected reports in this area · aids-to-navigation notices

165 within 180 nm since 1999 · 11 in the last 12 months · 3 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

Drill rig transocean equinox / V7A7397 / 538010767 in position 38-46.20S 142-48.80E 2.5 nm clearance requestedSurveys · 0.2 nm
Six meter buoy, yellow, established in 38-47.62S 142-37.77ENav aids · 8.8 nm
1 X 6M yellow surface buoy established in position 38-47.62S 142-37.77E 2.5NM clearance requestedNav aids · 8.8 nm
2 X 6M yellow surface buoys fl.white 3S temporarily established within 1.0NM of position 38-47.19S…Nav aids · 10.1 nm
Great australian bightCable ops · 41.2 nm
Special purpose vessel dependable / kdej / 367137000 conducting cable lay operations 10NM either side of…Other · 41.2 nm

Worldwide in the collected sources

137 aids-to-navigation notices listed in force · see all

Record snapshot 2026-10-01 05:49Z; source collection times vary.

Nav aids

Lights extinguished, buoys off station, RACON/NAVTEX outages. All current aids-to-navigation notices →

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.