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What is a cloudburst?

George Iype | August 01, 2005 16:39 IST
Last Updated: August 01, 2005 18:14 IST

A cloudburst is said to have caused the torrential rain in Mumbai, that has killed over 500 people and brought the city to a halt.

What is a cloudburst?

A cloudburst is sudden copious rainfall. It is a sudden aggressive rainstorm falling for a short period of time limited to a small geographical area.

Meteorologists say the rain from a cloudburst is usually of the shower type with a fall rate equal to or greater than 100 mm (4.94 inches) per hour.

Generally cloudbursts are associated with thunderstorms. The air currents rushing upwards in a rainstorm hold up a large amount of water.

If these currents suddenly cease, the entire amount of water descends on to a small area with catastrophic force all of a sudden and causes mass destruction. This is due to a rapid condensation of the clouds.

They occur most often in desert and mountainous regions, and in interior regions of continental landmasses.

During a cloudburst, more than 2 cm of rain may fall in a few minutes. They are called 'bursts' probably because it was believed earlier that clouds were solid masses full of water. So, these violent storms were attributed to their bursting.

One of the major disasters from a cloudburst in India occurred in 2002 in Uttaranchal. Some 28 people died when villages like Marwari, Kotsisham, Matgoan and Agonda were hit by sudden cloudbursts.

Cloudbursts frequently occur in Himachal Pradesh during the monsoon.

Terrible Tuesday: Mumbai copes with a calamity

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Number of User Comments: 3

Sub: how comes

what is the phenomen of cloud brust what are the causes of cloud brust can cloud brust be predicted

Posted by prakash

Sub: cloud brust

how does cloud brust occur what is the phenomenon of occurance

Posted by prakash

Sub: how come?

Can a cloudburst be predicted? if yes, why wasn't any action taken? moreover, it's more likely to occur in desert areas and the like - ...

Posted by Amoolya Narayan


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