Question

Why is the retreating monsoon season called the North east monsoon season?

Answer 1

Hint:The South-West Monsoon starts retreating from northern India in early October. Hence, the months of October and November are known for the retreating monsoon.

Complete answer:
With the onset of retreating monsoon, skies become clearer and clouds disappear. The disappearance of clouds makes the climate of various places hotter gradually. Severe tropical cyclones emerge from the Bay of Bengal. The month of October-November is prone to severe cyclones.
During this period, the temperature comes down sharply. The sky also becomes clear. As the monsoon starts retreating towards the south, the pressure gradient becomes low. Local pressure conditions usually affect the wind flow during that time.
It is during the retreating monsoon season in India that the southeastern coast receives a lot of rainfall; tropical cyclones also occur during this time. The state of Tamil Nadu receives almost half of its annual rainfall during this time. This is called the winter monsoon or the northeast monsoons.

Note:The retreating monsoon brings rainfall in an uneven amount to different places across India. Some places receive heavy rainfall and places that witness scanty rainfall.
The south-west monsoons withdraw from the Coromandel coast in mid-December. In Punjab, the south-west monsoons withdraw from there in the second week of September.
The withdrawal of the retreating monsoon is gradual and takes a longer duration compared to the advancing one.