what are the features of India monsoon define retreat monsoon in detail
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westeasten monsoon are comes
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Retreating monsoon season commences with the beginning of the withdrawal of the south-west monsoon [mid-September – November] and lasts till early January. It is a 3-month long process where it starts from the peninsula in October and from the extreme south-eastern tip by December. 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.
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.
The retreating monsoon brings rainfall in an uneven amount to different places across India. There are places which receive heavy rainfall and places which witness scanty rainfall.
Areas of Heavy rainfall:
- The western part of Western Ghats (200-400cm)
- North-eastern India (Assam, Arunachal Pradesh, Sikkim, etc)
Areas of low rainfall:
- Karnataka
- Gujarat
- Maharashtra