Typhoon sinks ship off Hong Kong

• More than two dozen crew members are unaccounted for after their ship broke into two during a typhoon in the South China Sea.
• Typhoon Chaba formed in central part of the South China Sea made landfall in Guangdong province in southern China.

Typhoons

• Typhoon is a regionally specific name for a strong "tropical cyclone".
• Tropical cyclones are known as ‘typhoons’ in the northwest pacific ocean, hurricanes in the North Atlantic Ocean, Willy-willies in north-western Australia and Tropical Cyclones in the Indian Ocean Region.
• A tropical cyclone is a generic term used by meteorologists to describe a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has closed, low-level circulation.
• They rotate counterclockwise in the Northern Hemisphere.
• Measured by: Saffir-Simpson Hurricane Wind Scale.