Bureau of Meteorology: Tropical Cyclone Information Bulletin

Tropical cyclone information bulletins are designed to provide information to people on existing cyclones that do not pose a short-term threat to coastal communities in Australia.

Tropical Cyclone Information Bulletins are issued whenever a tropical cyclone exists in Australian waters, but is not expected to cause winds in excess of 62km/h (gale force) over land in Australia* within 48 hours.

While the cyclone remains in Australian waters, but not expected to cause land-based gales within 48 hours, a tropical cyclone information bulletin will be issued every six hours.

Each Tropical Cyclone Information Bulletin will consist of the following information:

• The cyclone name (if it has been named)
• The latest observed location of the cyclone centre
• The expected developments (path and intensity)
• A statement of longer term threats.

All land based communities.
Note that separate marine warnings will be issued, and all mariners should refer to these warnings for relevant information.

Tropical Cyclone Information Bulletins are issued by Regional Offices of the Bureau of Meteorology in Brisbane for Coral Sea cyclones and Perth for Indian Ocean Cyclones. Tropical cyclones in the Northern zone will be a threat to some land area within 48 hours; hence Darwin does not issue Tropical Cyclone Information Bulletins.

Information Bulletin

Tropical Cyclone Seasonal Outlook (Provided in October)
Tropical Cyclone Outlook (Provided daily during the season)
Tropical Cyclone Watch (Threat 24 to 48 hours)
Tropical Cyclone Warning (Threat less than 24 hours)
Tropical Cyclone Technial Summary
Tropical Cyclone Forecast Track Map
Education Material

Return to Main Warnings Information Page

Last updated November 2006