Authorities have warned lives, homes and infrastructure are at risk from a category five cyclone tracking towards Western Australia's Pilbara coast. Tropical Cyclone Zelia is expected to make ...

The Fujita scale, and the revised Enhanced Fujita scale, are widely accepted scales used for rating tornado intensity. They ...

Here's the criteria a system needs to meet to be classified as a cyclone: a warm-cored, non-frontal low-pressure system of synoptic scale developing ... give it a lower rating — like Alfred ...

Dunes are often the first line of defence when powerful storms — like the one Cyclone Alfred delivered ... To visualise the scale of this change, ABC News has mapped sections of the coastline ...

Initially called Cyclone Alfred, the weather front was downgraded to a tropical low with winds set to reach up to 85km/h, less strong than first forecast. The Bureau of Meteorology said the storm ...