A tropical storm was believed to have formed from a low-pressure area, possibly on the tail end of a cold front on October 14.

Forming from an area of low pressure on August 3, Meranti gradually strengthened.

A tropical depression formed June 26 from a westward-moving area of disturbed weather.

A depression formed from an area of disturbed weather on August 17.

An organisations formed by groups of people from a specific area of Kiadngoor.

Forming on August 8 from an area of low pressure, the system gradually intensified into a tropical storm.

Celia formed from an area of low pressure on June 19, and quickly strengthened into a tropical storm and then a hurricane.

May formed from an area of low pressure on 25 February 1998 near the Australian coast.

Tropical Depression Four formed on June 28 from a large area of thunderstorms.

Tropical Depression Ten formed on August 6 from an area of disturbed weather.