What was the cause of continuous rain in Chennai?

A study from IISc shows that on 1 December, clouds were stationary over Chennai. This study showed that the mountains of Eastern Ghats blocked clouds that came from the Bay of Bengal from moving further inland. … These clouds gave continuous rainfall over Chennai that caused massive flooding.

Why is it raining so much in Chennai?

Chennai gets most of its annual rainfall from mid–October to mid–December. Over the years, the city has been depended on the annual rains in monsoon to replenish water reservoirs, as no major rivers flow through the area.

What is the reason for rainfall in Tamilnadu?

Rainfall in Tamil Nadu is caused by North-East monsoon winds. These winds blow over the Bay of Bengal before hitting the coast of Coromandel, Tamil Nadu.

What are the reasons for excessive rainfall?

Human-caused climate change intensifies the heaviest downpours. More than 70% of the planet’s surface is water, and as the world warms, more water evaporates from oceans, lakes, and soils. Every 1°F rise also allows the atmosphere to hold 4% more water vapor.

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What is the source of rainfall in Chennai?

The state has three distinct periods of rainfall: advanced rainfall; rainfall from the tropical cyclones emerging in the neighbourhood of the Andaman Islands during the Retreat of Monsoons(October–November): and the North-East monsoon during the months of October–December, with dominant northeast monsoon winds from the …

Will flood happen in Chennai 2020?

Published: Thursday 26 November 2020

The whole of Chennai remained in a shutdown mode as Cyclone Nivar made a late-night landfall near Puducherry November 25, 2020. Ferocious wind and incessant rains cut through the city, causing flooding in several parts and in the outskirts. Many areas suffered power cuts as well.

How many days will it rain in Chennai?

How many days does it rain in Chennai? In Chennai, India, during the entire year, the rain falls for 157.6 days and collects up to 823mm (32.4″) of precipitation.

Why does Chennai receives rainfall twice a year?

(i) The North-East winds pick up moisture while crossing Bay of Bengal. These winds are on-shore in Tamil-Nadu coast and hence cause rainfall there. (ii) During the months of October and November, the low-pressure area over North-Western India get transferred to the Bay of Bengal.

Which district has highest rainfall in Tamilnadu?

The highest rainfall departure is recorded in Tiruppur that received 98.7 mm rainfall against its normal of 4.8 mm, thus a rainfall departure of 1,957 per cent. “Historic January rains witnessed in Tamil Nadu and Kerala.

What is the reason of rainfall in winter in Tamilnadu?

Option A – North-east trade winds is the main reason behind winter rainfall in Tamil Nadu. As the state is situated in the eastern coast of India, the southern portion of India receives rainfall from the Southwest monsoons which are obstructed by the Western Ghats.

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What will happen if there is a continuous rain?

Heavy rainfall can lead to numerous hazards, for example: flooding, including risk to human life, damage to buildings and infrastructure, and loss of crops and livestock. landslides, which can threaten human life, disrupt transport and communications, and cause damage to buildings and infrastructure.

How can we prevent flooding?

Consider these suggestions to prevent or minimize flood damage in your home or business.

  1. Install water sensors or flood detection systems. …
  2. Regularly test your sump pump & consider a battery backup. …
  3. Regularly clear debris from drains and ditches. …
  4. Regularly check and clean downspouts and gutters.

What is heavy rainfall called?

Definitions of downpour. a heavy rain. synonyms: cloudburst, deluge, pelter, soaker, torrent, waterspout.

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