A Category 1 hurricane is the least intense on the Australian cyclone scale. It has winds ranging from 119 to 153 kilometers per hou.

While it is considered a relatively weak hurricane, it can still cause damage to trees, power lines, and poorly constructed buildings.

A Category 2 hurricane has winds going between 154 to 177 kilometers per hour. It is stronger than a Category 1 hurricane and can cause damage to trees, buildings, and infrastructure.

Storm surges, which are rises in sea level, may also occur and can lead to coastal flooding.

A Category 3 hurricane is a major hurricane with wind speeds going between 178 to 208 kilometers per hour. It poses a significant threat and can cause devastating damage. 

Buildings can be severely damaged or destroyed, and storm surges can result in huge coastal flooding.

A Category 4 hurricane is an extremely dangerous storm with wind speeds going between 209 to 251 kilometers per hour. It can cause catastrophic damage to buildings, infrastructure, and vegetation. 

Severe storm surges can penetrate far inland, leading to widespread flooding.

A Category 5 hurricane is the most severe and powerful hurricane on the Australian Cyclone Scale. It has wind speeds going up to 252 kilometers per hour or higher.

Buildings can be completely destroyed, and areas affected by storm surges may experience significant and life-threatening flooding.