01 November, 2019
3 Min Read
Syllabus subtopic: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location- changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.
News: Cyclone Maha likely to bring heavy rain to south Gujarat from Nov 6
Prelims focus: about cyclone Maha, regions affected by its impact
Mains focus: about cyclones, their formation and effects
How are cyclones formed?
Types of Cyclones:
We can also further describe tropical cyclones based on their wind speeds. They are called category 1, 2, 3, 4 or 5, increasing with intensity and wind speed as the number increases. A category 1 cyclone is the weakest, with wind speeds of 74-95 mph. A category 5 cyclone, on the other hand, is extremely dangerous and has the potential for major damage. Category 5 cyclones have wind speeds of 155 mph and above!
Depending upon its location and strength, a tropical cyclone is referred by different names:
Typhoons in Western North Pacific
Willy-willies in Australia
Baguio in Philippine Islands
Hurricanes around North America
Taifu in Japan
Cyclone in the Indian Ocean
Source: The Hindu
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