Question: Why does Chennai receives less rainfall through SW monsoon?

(i) Bay of Bengal branch of South-West monsoon passes parallel to Chennai coast. (ii) Due to the presence of Western Ghat on its way of flow, Arabian sea branch of South-West monsoon could not cross over and give little or no rain in Chennai.

Why does Chennai receive less rainfall through South West monsoon?

The Arabian Sea branch of South West Monsoons strike west ghats, first. After crossing, west ghats, these winds descend down the leeward slope of west ghats where they do not give much rain. … So, these winds give less rainfall in Chennai. S.W.

Why is the South West monsoon less rainy in Tamil Nadu?

Tamil Nadu lies in the Eastern coast of India. South-West monsoon is less rainy in Tamil Nadu due to the following reasons . (i) The Arabian Sea branch hits the Western Ghats and causes heavy rainfall there. By the time it advances towards Chennai, it becomes off-shore and gives less rain.

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Why is South West monsoon less rainy in Chennai during which month does the Tamil Nadu coast get most of its rainfall?

Southwest monsoons are less rainy in Chennai because:

South West monsoons blow from June month to September month. These blow from Sea to Land. These blow in two branches: Bay of Bengal and Arabian Sea Branch, and give a bulk of rain fall to India from 75 percent to 90 percent.

Why does Chennai have less rainfall?

Chennai lies on the eastern coast of India. … Chennai mainly receives rain in the winter months from the retreating monsoon and north eastern monsoon branch,which blow from land to sea hence they are dry. When they pass over adjoining water body they cause very little rain fall which Chennai mainly receives.

Why Chennai has more rain only?

(ii)Chennai receives most of its rainfall from the north-east’ monsoon, which gives rains mostly from October to December, and not the south-west monsoon. That is why Chennai gets most of its rainfall later than most other parts of the country.

In which state it does not rain during monsoon season?

Areas that receive the least rain and are most suited to travel during the monsoon include the desert state of Rajasthan, the Deccan Plateau on the eastern side of the Western Ghats mountain range, and Ladakh in far north India.

Why Kerala has more rain than Tamil Nadu?

Answer: Chennai has more rain months than Kerala because it receives rainfall from both- South West Monsoon winds and North West Monsoon winds (during winters) but Kochi receives rainfall only from South West Monsoon winds.

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Which coast receives rainfall twice a year?

Tamil Nadu coast receives rainfall twice in a year’.

Why is the rainfall concentrated for few months only?

The rainfall received by India is largely due to the south-west monsoon winds. The duration of the monsoon is between 100 to 120 days. Hence, the bulk of rainfall received by the country is concentrated over a few months.

What is retreating monsoon season?

During the months of October-November, the south-west monsoon winds become weaker and start to retreat from the skies of North India. This phase of the monsoon is known as the retreating monsoon.

Why Chennai has more rainy months but less rain than Mumbai?

Chennai receives rainfall, predominantly during the month of october, november and a small amount in the month of December.. It receives its annual rainfall from North East monsoon(land to sea), unlike South west monsoon(sea to land) from which Kochi receives. SE monsoon is relatively perennial than NE monsoon….

Why Chennai has more rainy months but receives less rainfall than Mangalore?

Since there is no hill range close to Chennai, orographic rainfall is impossible over Chennai. … As Southwest monsoon winds blow over Mangalore it gets blocked by western ghats and as it lies in windward side, it gets copious rainfall. Western ghats is the sole reason for Mangalore receiving more rainfall than Chennai!

Why does Shillong receives less rainfall?

It receives rain from the South West Monsoon Bay of Bengal Branch as it is in the Pathway of these winds. … Shillong is located on the upper (leeward) side of the Garo-Khasi-Jaintia hills, which is a rain shadow area and hence receive less than 200cms of rainfall in a year.

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