No one knows
Paul Homewood
The BBC reported on the cyclone Alfred that just attacked Queensland:

There are thousands of people in Australia who are powerless after the wild weather brought to the east coast by the hurricane.
Community in southeast Queensland and northern New South Wales (NSW) began cleaning on Sunday after the storm caused extensive flooding and knocked down wires and trees.
The body of a 61-year-old man was found from the flood Saturday, and in another incident, 12 soldiers were taken to the hospital after the convoy crashed on the way to rescue operations.
The storm had weakened when it landed near Brisbane on Saturday night, but Prime Minister Anthony Albanese warned locals on Sunday of the ongoing wild weather and flood risk.
“The situation in Queensland and northern New South Wales remains very serious due to the overflow of mountain floods and strong winds,” Albanese said.
“The impact of heavy rain, destructive wind gusts and coastal surfing is expected to continue over the next few days.”
https://www.bbc.co.uk/news/articles/cq8y3xgkpw9o
In almost all the stories about hurricanes, the BBC always includes a passage that global warming makes them worse.
Strangely, this latest report simply doesn't comment on the long-term trend. Is it because whirlwinds are already very rare for Australia?
This is what the Australian Meteorological Agency confirmed that not only have lower frequency of tropical cyclones, but also more severe cyclones have also decreased.


http://www.bom.gov.au/cyclone/tropical-cyclone-knowledge-centre/history/climatology/
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