when do cyclones occur

Tropical cyclones generally form in any ocean where water temperatures are greater than 80 degrees Fahrenheit and the upper-level winds are benign. Cyclones are one of nature’s responses when there is a meeting between hot and cold air currents. A cyclone may also be called a hurricane or typhoon depending on its place of occurrence. Gafilo caused 237 deaths and $250 million in Madagascar. Strongest cyclone: Very Intense Tropical Cyclone Gafilo made landfall on Madagascar in 2004 with sustained winds of 155 mph. • To form a cyclone, warm, moist air over the ocean rises upward from near the surface. They occur when a rising column of air leaves an area of low pressure at the Earth's surface which then sucks in the air from surrounding areas. Where and when do tropical cyclones occur? Mid-latitude cyclones can bring severe weather across the entire US … Read the article to know various dos before, during and after the cyclone. The red arrows indicate where cool air is sinking. Cyclones can cause extensive damage to coastal areas and miles inland. The strength of a cyclone is expressed in categories. Many tropical cyclones eventually drift far enough from the equator to move into areas dominated by westerly winds (found … When do bomb cyclones or storms happen? Hurricane Season normally begins at the time at which an area of the ocean temperature is at its warmest. • Tropical cyclones form only over warm ocean waters near the equator. If you are mentioning cyclone as in tropical cyclones in general, which includes hurricanes and typhoons, I would say in summer and autumn in general, which means May to November in the northern hemisphere and December to April in … 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 … Where And When Do Tropical Cyclones Happen? If a cyclone does form, it will feed off all that heat and moisture and spiral into one of the most powerful natural events on the planet. Mid-latitude cyclones are huge weather systems that occur most often during the winter season in the United States. Based on the increasing average wind speeds at the center of a typhoon that are sustained for a period of 10 minutes, typhoons may be classified into 6 stages, from the least powerful to the … In this article, the author discusses how to remain safe during the cyclone. Tropical cyclones cause extensive damage in almost every year in the coastal areas of the world. If it occurs in the Atlantic and North Pacific, it is referred to as a hurricane, and if it occurs in the Northwest Pacific, it is called a typhoon. As this air moves up and away … These low pressure areas pop up easily during winter because of the large temperature difference between the equator and the North Pole. 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 … The above figure shows how cyclones form. Because Tropical Cyclones form over tropical or subtropical waters and feed on the heat that is released when moist air rises. Where Do Tropical Cyclones Form? The name cyclone is retained when referring to tropical cyclones that occur over the Southwestern Pacific and Indian Ocean. Tropical cyclones form between approximately 5° and 30° latitude and initially move westward (owing to easterly winds) and slightly towards the poles. 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 green arrows show where warm air is rising. Than 80 degrees Fahrenheit and the upper-level winds are benign million in Madagascar 2004... 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