Cyclone Information :: Severity :: Categories :: Precautions :: Warnings :: Tracking Map

Tropical cyclones

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Categories Comparison


Category 1
Strongest gust less than 125 km/h
Typical effects (indicative only) - Negligible house damage. Damage to some crops, trees and caravans. Craft may drag moorings. 


Category 2

Strongest gust 125 - 170 km/h
Typical effects (indicative only) - Minor house damage. Significant damage to signs, trees and caravans. Heavy damage to some crops. Risk of power failure. Small craft may break moorings. 

Category 3 (e.g. Winifred)
Strongest gust 170 - 225 km/h
Typical effects (indicative only) - Some roof and structural damage. Some caravans destroyed. Power failure likely. 

Category 4 (e.g. Tracy) 
Strongest gust 225 - 280 km/h
Typical effects (indicative only) - Significant roofing loss and structural damage. Many caravans destroyed and blown away. Dangerous airborne debris. Widespread power failure. 

Category 5 (e.g. Orson)
Strongest gust More than 280 km/h
Typical effects (indicative only) - Extremely dangerous with widespread destruction. 

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