|Hurricane Isabel (2003)|
According to <news.com.au> the Cyclone Lua has been up-graded to a category 4. With wind gusts expected up to 230km/h. The Australia Cyclone Severity Scale is from 1 -5, 5 is >280 km/h extreme destruction.
Here is the Australian Cyclone Severity Scale
Keep up with the latest storm images and data from Nasa.