Explainer: What is a tropical cyclone and what do the categories mean?

Under the scale we use, they range from category 1 to 5. Category one tropical cyclones have sustained wind speeds from about ...
The Conversation

Cyclone Narelle is now larger and ‘more severe’ as it crosses the Western Australian coast

Severe Tropical Cyclone Narelle continues to amaze us with its long journey across northern Australia. This cyclone began life near the Solomon Islands on March 16, when moist air rose rapidly and ...