Question

when does frontal rainfall occur?

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Answer 1

Answer:

If temperature increases in a small area,air over it warmps up and rises.This leads to lowering of the local pressure and the formation of a centre of deep depression. The air surrounding this low pressure centre is cooler and exterts high pressure. Wind blows from the high pressure areas to the central low pressure areas at a great speed,thereby generating a cyclonic storm. This is how a tropical cyclone forms. The wind reaches central low pressure cell,it gets warmer and a whirlwind starts moving upward. The centripetal ascending air mass cools down and condenses causing torrential and thounderous rain. Rainfall thus caused by a cyclone is called ‘Frontal Rainfall’ or ‘Cyclonic Rainfall'.

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