Australian Maritime Safety Authority

Maritime Safety Information

Maritime Safety Information provided by AMSA

The Australian Maritime Safety Authority provides vessels with Maritime Safety Information to provide warnings and foreseeable dangers within the area in which a vessel is passing.

What is Maritime Safety Information?

As the NAVAREA X Coordinator, AMSA provides Maritime Safety Information (MSI) via the Inmarsat SafetyNET system.

MSI is designed to give mariners information relating to:

  • dangers
  • aids to navigation within the area of the vessel's location.

In Australia MSI is provided via long range warnings (NAVAREA X Warnings) and coastal warnings (AUSCOAST Warnings and Sea Safety Messages).

AUSCOAST Warnings are broadcast to the relevant coastal areas.

Areas for coastal navigation warnings on SafetyNET

Many warnings are temporary, but others may remain in force for several weeks and may be superseded by Notices to Mariners.

As well as the SafetyNET service, the Bureau of Meteorology provides the weather component of MSI via the Kordia Solutions Pty Ltd network, employing HF voice broadcasts through sites at Wiluna and Charleville. This service is provided for small craft.

Broadcasts are made on a number of different frequencies from both sites and are optimised for the time of day. Details of the frequencies and broadcasts are available from the Bureau of Meteorology website and the Admiralty List of Radio Signals Volume 3 Part 2.

The coastal weather services broadcast from each station cover different coastal areas. Further details are also available from the Bureau of Meteorology website.

Related information

For non-emergency Australian Maritime Safety Authority contacts, please visit the contact us page.

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