A disaster is a natural or man-made event that negatively affects life, property, livelihood or industry often resulting in permanent changes to human societies, ecosystems and environment.

Suffering, Deprivati

on, Hardship.

Injury and

disease

Types…..

What is CYCLONE?

• The terrifying word ‘Cyclone’ has been derived from the Greek word ‘Cyclos’ meaning coil of a snake.

• Cyclone in meteorology refers to any low pressure area with winds spiraling inwards. Cyclones rotate clockwise in the Southern Hemisphere and anti-clockwise in the Northern Hemisphere.

• Cyclone is the general term for a variety of low pressure system types, such as tropical cyclones, extra tropical cyclones and tornadoes

Confusion1.What is the difference between Typhoons and

Hurricanes ?2.What is Willy-Willies ? Why they named so?

Name Region Hurricanes

Atlantic Ocean

Typhoons

Australian Seas

Willy-Willies

Australian Seas

Cyclones

North Indian Ocean

But the Australian Bureau of Meteorology defines the term to mean a dust devil where “local hot spots can develop on the ground, drawing in cooler air from around them and causing spiraling of the air”.

The American Meteorological Society also agrees on the newer definition of a willy-willy. While the term was previously used to denote a tropical cyclone, it is now commonly used in reference to dust devils.

There is confusion in the definition of a willy-willy. In the United States, the National Weather Service defines a willy-willy as “a tropical cyclone of hurricane strength near Australia”.

FormationHow cyclones form.mp4

in IndiaIndia is highly vulnerable to natural hazards especially earthquakes, floods,

drought, cyclone and landslides.The cyclones that occur between Tropics of Cancer and Capricorn are known as Tropical Cyclones. Indian sub-continent is the worst affected region

of the world, having a coast line of 7516 kms. It  is exposed

to nearly 10% of the world’s Tropical Cyclones. Although cyclones affect the entire coast of India the East Coast is more prone compared to the West Coast.

Analysed data for the period 1980-2000 shows that on an average, annually 370 million people are exposed to cyclones in India and also

nearly 308 cyclones (out of which 103 were severe) affected the East Coast.

CYCLONES OCCURRED IN INDIA

In TamilNadu

Thane Cyclone.mp4

Cyclones around the worldMiami Beach, Florida.mp4 Angry sea.mp4

Disaster Management

• Disaster Management can be defined as the organization and management of resources and responsibilities for dealing with all humanitarian aspects of emergencies, in particular preparedness, response and recovery in order to lessen the impact ofdisasters.

During a Cyclone:• Turn off all electricity, gas and water and unplug all

appliances• Keep your Emergency Kit close at hand• Bring your family into the strongest part of the

house• Keep listening to the radio for cyclone updates and

remain indoors until advised• BEWARE THE CALM EYE OF THE CYCLONE. 

Shelter at home

• Turn off all electricity, gas and water, unplug all appliances and lock your doors

• Ensure all family members are wearing strong shoes and suitable clothing

• Take your Emergency Kit and your Evacuation Kit and commence your Evacuation Plan

Evacuate

After a Cyclone:

Listen to your radio and

remain indoors until advised

If you are told to return to your

home, do so using the recommended

routes only

Do not go sightseeing

Check on your neighbours if

necessary

Do not use electrical

appliances which have been wet until they are

checked for safety

Boil or purify your water until

supplies are declared safe

Stay away from damaged

powerlines, fallen trees and

flood water

GOs &NGOs

Organization

• In India– National Disaster Management

Authority.– Civil Defence. – Volunteers of national service scheme.– Home guards.– Nehru yuva kendra sangathan.

Organization

• Around the Globe:– UN Disaster Management Team.– Food and Agriculture Organization.– International Labor Organization. – United Nations Development Programme. – Children's Rights & Emergency Relief

Organization.– World Food Programme.– World Health Organization.