Temporary notices to mariners

Find out about temporary notices to mariners for all navigational advice, navigational warnings and aquatic events.

Use the links below to view all current temporary notices and navigational warnings in each region and statewide of Western Australia.

Cancelled, withdrawn or expired notices are regularly removed.

See nautical charts for notices to mariners (chart corrections).

  Types of Temporary notices to mariners (TNTMs)

WA temporary notices to mariners are divided into three types:

  • Advice: Notices issued to advise the mariner of temporary navigational information considered important to safe navigation.
  • Warnings: Notices issued to advise the mariner of marine hazards such as reported navigational aid outages.
  • Event: Notices issued to advise the mariner of approved aquatic event and fireworks displays.

For other information on environmental conditions in your region, go to Coastal data and charts.

  Notices issued by other agencies

Australian Notices to Mariners are issued by the Australian Hydrographic Office. See below for other agencies that issue notices to mariners and navigational warnings.

Opens in a new window Australian Maritime Safety Authority (AMSA)
Opens in a new window Department of Defence: Australian Hydrographic Office
Opens in a new window Fremantle Port Authority
Opens in a new window Kimberley Ports Authority
Opens in a new window Pilbara Ports Authority
Opens in a new window Southern Ports Authority: Marine notices

  HF/VHF monitoring and emergency call information

Water Police: HF monitoring/emergency calls

A 24 hour, seven-days-a-week service operated from the Water Police Coordination Centre in North Fremantle monitors the 4125, 6215 and 8291 kHz distress and calling frequencies

This HF service covers WA coastal waters within 200 nautical miles of the shore from two new transceiver sites:

  • Canning Mills in Perth (call sign: Coast Radio Perth).
  • Port Hedland (call sign: Coast Radio Hedland).

The Water Police also broadcasts relevant Western Australian navigation warnings from Perth and Port Hedland on 8176 kHz.

Water Police: VHF monitoring/emergency calls

The Water Police monitors and provides local weather and navigation warning broadcasts on VHF channel 16/67 at 0718 and 1918 hours Western Standard Time (WST).

Severe weather warnings, when issued, are broadcast every two hours.

This VHF service only covers Perth metropolitan waters within 20 nautical miles of the shore.

Page last updated: Tue Feb 15 2022 12:44:10 PM