Cyclonic storms are caused when large air masses of different temperature and densities meet. As the warmer air mass of lower density rises and the cooler air descents, a weather front is formed. Coriolis effect causes the front to start spinning to form a funnel. In a tropical storm, the biggest ‘fuel’ is water vapor from the oceans. As the water vapor rises and condenses, the water releases latent heat and warms the surrounding air. This causes a low-pressure system and cooler air masses begin to move to the region of low pressure as the warm air ascends. The spiraling beigns and a tropical storm is formed.
