Cyclone Alfred

March 7, 2025

Cyclone Alfred is currently approaching Australia’s east coast, bringing unprecedented weather conditions. This cyclone is notable for its southern formation and slow movement. These characteristics pose risks to densely populated areas unaccustomed to tropical storms. With sustained winds of 95 kilometres per hour and gusts reaching 130 kilometres per hour, the cyclone threatens regions from Double Island Point in Queensland to Grafton in New South Wales.

Formation and Characteristics of Cyclone Alfred

Cyclones typically form in tropical regions.
However, Alfred has emerged further south than usual.
It is classified as a category 2 storm. This classification is based on wind intensity.
The cyclone is expected to affect major urban centres, including Brisbane and the Gold Coast, which have not experienced a cyclone since 1974.
The unusual path of Cyclone Alfred is attributed to a high-pressure system over the Tasman Sea, causing it to turn westward.

Impact of Slow Movement

Alfred’s slow movement exacerbates its potential impact. As cyclones move slowly, they can release more rainfall over a single area. Initially, Alfred was expected to make landfall quickly. However, it is now anticipated to linger, leading to increased rainfall and severe flooding. The prolonged presence of the cyclone will also generate larger waves, worsening coastal erosion.

Climate Change Considerations

While it is difficult to attribute Cyclone Alfred directly to climate change, the phenomenon has been linked to increasingly erratic cyclone behaviour. Warmer ocean temperatures can influence cyclone formation and intensity. This trend raises concerns about future tropical cyclones impacting areas not traditionally affected.

About Tropical Cyclones

According to the World Meteorological Organisation, a tropical cyclone is a rapidly rotating storm formed over tropical or subtropical waters. It features violent winds and heavy rain. The process begins when a low-pressure system develops over warm waters. Warm, moist air rises, and as the Earth rotates, winds begin to spin. Cyclones are classified when wind speeds exceed 63 kilometres per hour.

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