Powerful cyclone Yasi hits Queensland in Australia

Australian authorities have warned people to take shelter with a powerful cyclone expected to hit the northern state of Queensland shortly. Winds have already begun to pick up and people are being told to stay off the streets. Cyclone Yasi, which has strengthened to a category 5, is feared to be the most dangerous storm to ever hit the area. This is yet another chapter in Australia's trying summer, during which it witnessed the worst flooding in decades.