How did Cyclone Tracy occur?

How did Cyclone Tracy occur?

Tracy was first detected as a depression in the Arafura Sea on 20 December 1974. It moved slowly southwest and intensified, passing close to Bathurst Island on the 23rd and 24th. Then it turned sharply to the east southeast, and headed straight at Darwin, striking the city early on Christmas Day.

What did Cyclone Tracy cause?

Cyclone Tracy killed 71 people and caused A$837 million in damage (equivalent to around A$4.45 billion in 2014 value). Approximately 30,000 of Darwin’s residents were evacuated, mostly to Adelaide and Sydney, and many never returned to the city.

What were the environmental impacts of Cyclone Tracy?

The impact on the natural environment after the devastation of Cyclone Tracy was disastrous. Water supplies were down as the water was contaminated. Sewerage lines were damaged which led to a lack of sanitation and let poisons leak into the environment. Metal, glass and debris was left all over the city of Darwin.

Where did Cyclone Tracy occur?

DarwinNorthern TerritoryTiwi Islands
Cyclone Tracy/Affected areas

What is a cyclone in geography?

cyclone, any large system of winds that circulates about a centre of low atmospheric pressure in a counterclockwise direction north of the Equator and in a clockwise direction to the south.

When did Cyclone Tracy occur?

December 21, 1974 – December 26, 1974Cyclone Tracy / Date

How did Cyclone Tracy effect Darwin?

Cyclone Tracy, which hit Darwin in the small hours of Christmas Day 1974, killed 71 people and devastated 80 per cent of the city. In the days and weeks following the disaster, most of the traumatised population left the city.

What is cyclone and its causes and effects?

Cyclone is caused by the rising of warm air above the surface of sea. When the warm air rises, the cold air rushes to the empty space. Then the cold air gets heated up and again rises in the atmosphere. This process (Cyclone Cycle) takes place continuously.

What process does a tropical cyclone undergo?

Tropical cyclones typically form over large bodies of relatively warm water. They derive their energy through the evaporation of water from the ocean surface, which ultimately condenses into clouds and rain when moist air rises and cools to saturation.

What type of cyclone was Cyclone Tracy?

Category 4 cyclone
Cyclone Tracy was a Category 4 cyclone that laid waste to the city of Darwin in the Northern Territory early on Christmas morning 1974.

What is main cause of cyclone?

What causes cyclone? Cyclones are centred on areas of low atmospheric pressure, usually over warm ocean waters near the equator. The warm moist air over the ocean rises from the surface in the upward direction, resulting in the formation of the low-pressure zone over the surface.

What is cyclone in geography?

What causes cyclones in India?

Cyclones are caused by atmospheric disturbances around a low-pressure area distinguished by swift and often destructive air circulation. Cyclones are usually accompanied by violent storms and bad weather.

What are cyclones how are they formed?

Cyclone is system of winds rotating inwards at a high speed with the area of low pressure in the middle. Tropical cyclones are formed only over warm ocean waters near the equator. When warm, moist air over the ocean rises upward from near the surface, a cyclone is formed.

What factors can cause cyclones?

The factors which contribute to the development of cyclone are:

• Wind speed.
• Wind direction.
• Temperature.
• Humidity.