Cyclones: how they form, how they’re rated and who comes up with the names? | Explainer | ABC News

Australia has just entered one of its most dangerous periods for natural disasters. Every year, on average, four cyclones will cross the coast but this year the bureau expects there could be more. Matt Wordsworth takes a look at how these weather systems form and the damage they leave behind.

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#CycloneExplainer

00:00 How do cyclones form?
00:39 Northern hemisphere hurricanes vs southern hemisphere cyclones
00:54 The eye of a cyclone
01:28 How are cyclones rated?
01:36 Category 1
01:45 Category 2
01:54 Category 3
02:02 Category 4
02:10 Category 5
02:20 How cyclones develop
02:30 Storm surges
02:39 Hurricane Katrina
02:45 Flash flooding risks
02:55 Gold Coast cyclone 1954
03:10 Cyclone Yasi 2011
03:26 Cyclone Larry 2006
03:40 How do cyclones get their names?




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