Monsoon refers to a seasonal change of winds, characterized by heavy rains. A monsoon’s season is triggered towards the end of the summer due to the difference between hot and cold air masses.
The warm air mass lands on India from tropical landmasses over the Indian Ocean. Once the warm winds hit the continental land, they raise high pressure systems.
The air rushing down from these air pressure systems causes precipitation that forms clouds. Due to temperature variation, winds are forced to collect water vapor into one place.
It eventually travels along with winds forming huge puddles on Earth’s surface. Monsoon rains are expected during May through September in various parts of south Asia including India, which receive their annual rainfall during this period.
These dry spells are quite common during the rainy season. These breaks in the different regions are due to different reasons:
- In northern India rains are likely to fail if the rain-bearing storms are not very frequent along the monsoon trough or the ITCZ over this region.
- Over the west coast the dry spells are associated with days when winds blow parallel to the coast.
