In Australia, cyclones usually occur off the northwest coast of Western Australia, in the Gulf of Carpentaria and the Coral Sea, just off the coastline of Queensland. Tropical cyclones generally form in any ocean where water temperatures are greater than 80 degrees Fahrenheit and the upper-level winds are benign. Where And When Do Tropical Cyclones Happen? When a hurricane makes landfall (comes ashore), the storm surge causes extensive flooding. In meteorology, a cyclone (/ˈsaɪ.kloʊn/) is a large scale air mass that rotates around a strong center of low atmospheric pressure. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Hurricane Season normally begins at the time at which an area of the ocean temperature is at its warmest. Cyclones are one of nature’s responses when there is a meeting between hot and cold air currents. Cyclones are called hurricanes in the Atlantic and eastern Pacific, typhoons in Southeast Asia, and cyclones in the Indian Ocean and western Pacific around Australia. The ocean temperature must be at least higher than 80 degrees Fahrenheit, and the ocean must also be at least 150 feet deep. When the warm air rises, cold air on all sides drops, and spinning occurs due to the Coriolis effect. Cyclone Yasi is a big one, with predicted wind speeds of over 295km/h, a core region 500km in diameter, and a zone of associated storm activity spread over 2000km. The Tropical Cyclones. Hurricanes, for example, are the names given to tropical cyclones in the United States and the Antilles. Explain why hurricanes mainly occur in the tropics. How do cyclones form: Genesis of a Cyclone. Cyclones happen most in Australia. These are circular shaped rotating storms which have huge diameters ranging from 150 to 1000 kilometres.Due to this high speed rotation, an intense low pressure is formed at the centre; this is called the “Eye of the storm”.Cyclones of high intensity are caused mostly in tropical areas. Cyclones, which are storms that rotate around a central low-pressure area, occur when high-pressure cold air fronts slide on top of low-pressure warm air fronts. Cyclones also need to be at least 310 miles from the equator. Cyclones are characterized by inward spiraling winds that rotate about a zone of low pressure. What is a Tropical Cyclone. The different names have to do with where the storms form. Cyclones form in the South Pacific and Indian Ocean, which is the ocean that borders Northeast Australia. Because Tropical Cyclones form over tropical or subtropical waters and feed on the heat that is released when moist air rises. By the way, cyclones, hurricanes, and typhoons are the same thing: depending on where they are born, they are called by one name or another. What do fronts encourage? Most occur between December and April. While in Asia they are called typhoons. Tropical cyclones which occur in the Atlantic region and affect the Caribbean and USA usually comprise less than 15% of global tropical cyclone activity. Start studying Tropical cyclones. The Coriolis effect is less prominent along the equator, so tropical cyclones usually do not develop within five degrees north or south of the equator. Tropical cyclones also occur in various parts of the Pacific Ocean, and can affect coastal regions of Mexico, southeast Asia, northeast Australia and the south Pacific islands. Since Cyclones occur in all types of different areas, cyclones mostly happen in ocean. Official cyclone season is from Novmber1st to April 30th. Where Do Tropical Cyclones Form? 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