OK, I looked it up, and I even found an Australian site that defines what you guys mean by a cyclone. That's what we call a hurricane here in the States. When I think of a tornado, I always picture The Wizard of Oz. I've never experienced a tornado, though we do get some smaller ones around here. One day I was driving someplace and passed a place with a dirt parking lot. In the middle of the parking lot was a whirl of dust that looked just like a mini tornado. It was about 20 or 30 feet high. It scared me, and I didn't hang around to watch what might happen next, but I never heard of any damage, so I guess it fizzled out. We did have violent thunderstorms that evening, and I've heard tornados and thunderstorms are connected in some way, though I don't know the details. As for hurricanes, the East Coast seems to get most of them, and the southern part gets more violent ones than the Northeast. We live far enough inland that when they get a hurricane, we just get hard rain and some wind. Hurricanes seem to be born out at sea and then hit land, causing destruction, but as they move inland, they dissipate fairly quickly.
So here's your Aussie source for the info. Now you, too, can be in the know.
Tropical cyclone, tornado, twister, hurricane, typhoon- Bureau of Meteorology