The Geographical Process of a Tropical Cyclone.
Tropical Cyclones occur because warm, moist air tries to escape out into the atmosphere quickly, which creates areas of very low pressure. As the warm air rises, it becomes filled with moisture which then condenses into massive rain clouds. Cool air rushes in to fill the area that is left, the air is forced inwards and then spirals upwards with terrific force. The swirling, gale force winds spin faster and faster in a spiral movement around the centre of the cyclone.
This circular centre, of calm and clear skies, is called the eye of the cyclone. In the eye, there is light winds and generally no rain. The cyclones gradually build up their power with clockwise wind motions and gale force winds are produced. The gale force winds surrounding the eye can extend many kilometres and can reach speeds of 200km/ hr.The strongest winds and heaviest rains are found in the dense clouds that combine together to form a wall about 20-30 km from the cyclone's centre and about sixteen metres high.
As the cyclone builds up, it begins to move. The cyclone will last on a flow of warm, moist air. Tropical cyclones last on the energy from warm, tropical waters and can last for numerous days on land, and can follow very unpredictable paths. They can dissipate over land or cooler oceans.
This circular centre, of calm and clear skies, is called the eye of the cyclone. In the eye, there is light winds and generally no rain. The cyclones gradually build up their power with clockwise wind motions and gale force winds are produced. The gale force winds surrounding the eye can extend many kilometres and can reach speeds of 200km/ hr.The strongest winds and heaviest rains are found in the dense clouds that combine together to form a wall about 20-30 km from the cyclone's centre and about sixteen metres high.
As the cyclone builds up, it begins to move. The cyclone will last on a flow of warm, moist air. Tropical cyclones last on the energy from warm, tropical waters and can last for numerous days on land, and can follow very unpredictable paths. They can dissipate over land or cooler oceans.