Cyclone Yasi is a BIG ONE.

Katrina was a Cat 5 Hurricane, 640km wide with an eye of 51km wide, wind gust exceeding 280kph.
Yasi has been upgraded to a Cat 5, 500km wide, eye of 100km wide. Tidal surge in some areas of 7mtrs.
Latest up to date sat images and data.

http://www.weatherzone.com.au/satellite/

Live coverage:

http://www.couriermail.com.au/news/n...-1225997552623