What is Cyclone?How many types of …

In meteorology, the term cyclone can be defined as the rapid inward circulation of air masses about a low-pressure centre which is circling counter-clockwise in the northern hemisphere and clockwise in the southern.

Types of Cyclone

1. Tropical Cyclone: It occurs over tropical ocean regions. it is two types- Hurricanes and typhoons. Hurricanes are found in the Atlantic and Northeast Pacific, whereas typhoons are found in the Northwest Pacific. On the basis of intensity and wind speed, this cyclone is classified into five categories- 1, 2, 3, 4 or 5. Category 5 has a wind speed of 155 mph or above.

2. Polar Cyclone: It occurs over Polar Regions of Greenland, Siberia and Antarctica. It is strong during the winter season.

3. Mesocyclone: It is a vortex of air within a convective storm. It is the air that rises and rotates around a vertical axis, usually in the same direction as low-pressure systems in a given hemisphere. These types of cyclones are accompanied by the rotating air within the thunderstorm.