Nav aids

Nga chart 74520 (2ND ed)

Australia-northwest Coast · HYDROPAC 1203/11

What this record establishes

Archived notice · 2011-07-16 09:05Z

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) · AUSCOAST 129/11 192357Z APR 11.. Issued 2011-04-20 00:15Z. 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: Australia-northwest Coast. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.

issued: 2011-04-20 00:15Z
status: Archived notice
authority: AUSCOAST 129/11 192357Z APR 11.
issued by: AUSCOAST
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

AUSTRALIA-NORTHWEST COAST.
NGA CHART 74520 (2ND ED).
FOUR YELLOW BUOYS, FL Y, ESTABLISHED
IN AREA BETWEEN
20-28.07S 20-30.07S AND 113-43.33E 113-45.47E.

Reading this warning

Chart reference: The number of the nautical chart on which the reported position lies.
Light characteristic: The coded description of a light — FL W 10 SEC 8 METERS 8 MILES — giving its rhythm, colour, period, height and range.
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.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

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

Record snapshot 2026-10-02 20:51Z; 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.