introduction of cyclone . about cyclone . classification of cyclone . about fani cyclone also . in about 500 words
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Cyclones
Natural disasters can happen at whichever time and at any place. Cyclones happen rarely in the southern hemisphere but when it happens it can kill thousands of people and demolish lots of buildings and properties.
Cyclones are fierce whirling winds that can cause a lot of destruction. A cyclone can be so huge that it can cover over half of the United States. It can happen in the time of a few seconds to possibly 1 to 10minutes. A special extreme kind of cyclone that is only 300 yards (274 meters) across is a tornado.
All cyclones have an "eye". The eye is the center of the cyclone and is the only calm spot. The cyclone's winds always spiral towards the eye, counterclockwise or anticlockwise.
Cyclones move at speed between 240 to 1, 200 miles per hour or 386 to 1, 930 kilometers a day.
Cyclone Tracy was the worst disaster that ever occurred in the Northern territory. On the 24th December 1974 disaster struck. Cyclone Tracy struck unexpectedly on Christmas Eve. It killed 65 people altogether, 49 died from being squashed by objects flying about and another 16 people were drowned at sea while trying to get away. Cyclone Tracy caused over 150 million dollars worth of damage and up to 90% of the town was destroyed. The wind speed was 217km/h. 25000 people were evacuated, as there was a hazard of diseases because the sewage pipes were broken. seven out of ten houses were destroyed or brutally damaged.
After Cyclone Tracy had passed people helped to rebuild their town. That is why people still remember the terrors of that Christmas Eve.
Cyclone is the name of a revolving wind.
There are two distinctions of a cyclone depending on the region of origin:-
- Tropical cyclone or Tropical cyclone.
- Extratropical cyclone or Temperate cyclone or Extratropical cyclone.
Thermal cyclones:-
These are windstorms or storms, which are intense and common elsewhere in the tropical region. They cause abundant rainfall. They have a diameter ranging from 50 to 1,000 miles and a relatively low air pressure area. They run at speeds ranging from 20 to 30 miles per hour. Among them, the wind speed ranges from 90 to 130 mph.
These are called Prabhanjan (hurricane) in the West Indies and typhoon in Chinasagar and the Philippines, and Tornado in the US and Willie Willies in Australia.
Thermal Cyclone:-
This is a low-pressure storm in the middle and high latitudes. Its velocity moves spiral at a velocity of 20 to 30 mph. Often it causes snow and rain.