Geographical Process
Tropical cyclones form over the northern areas of Australia closest to the equator, this usually occurs in November to April. Tropical cyclones need warm waters greater than 26.5°C. A clump of thunderstorms and a warm body of is where the storm gathers its energy. The developing storm evaporates the ocean below then condenses to form clouds which releases heat throughout this process. The rising air forms clouds, which release heat causing the warm air to rise further. The heat combines with the rotation of the Earth. This process gets the cyclone spinning and propels it forward to Australia's coastline.
This image has been taken from the Geography Focus 2 text book. It is showing the parts of a tropical cyclone and how it forms over the sea.
This image has been taken from the Geography Focus 2 text book. It is showing the parts of a tropical cyclone and how it forms over the sea.