Cyclones

                        It is known as the condition of strong tropical winds Tornado means strong wind which rotates with low pressure . Bay of Bengal is the area which is near to Sri lanka . This condition usually occurs in the area between 8 and 15 latitude . When the temperature is about 30 C⁰  that condition happens and the amount of humidity in the air. It does not occur in the land areas.

                    It happens in the sea area. When air gets hot and rises to the sky. First big clouds are formed. They might be several kilometers in extant. They get caught in to the Eastern air and revolve and move to the west. This mainly happens in summer.

What are tornadoes, hurricanes and cyclones?

When wind moves with great speed and creates disturbance in the atmosphere, it is called a storm. Storms of summer are mainly caused by the rise in atmospheric temperature. Due to high temperature, air expands and there is a full in the atmospheric pressure in the area. To balance it, air from colder regions where there is more pressure, rush to the hotter regions. Carrying with it a large amount of dust and we call it a dust-storm.

Tornadoes, cyclones and hurricanes are some of the dangerous storms in which wind makes fast whirling motion. When the temperature of a small area rises to a high degree and, consequently, the atmospheric pressure falls, air from surrounding areas rushes in to fill this vacuum. Because of its fast velocity, wind’s motion in that area becomes whirling. The hot air goes up fast, formatting a funnel shaped cloud. This is called a tornado. The pressure inside a tornado is so low that any object coming in its way gets sucked in. Wind velocity of a tornado goes up to 200 kilometers per hour.

Hurricane generally belong to tropical area. They engulf area within a radius of 80 to 320 kilometers and the wind-speed goes up to 120 to 200 km per hour. the central portions of the hurricane

Did you know that hurricanes & typhoons are the same kind of storm?

Hurricanes form in the Atlantic, typhoons in the Pacific & Indian oceans. Some parts of China & South East Asia have typhoons in summer. Japan has more in autumn.

A Hurricane or typhoon is a tropical cyclone in which winds attain speeds greater than 120 kilometers per hour. Sometimes, they cause extensive damage. The hurricane season in the northern hemisphere runs from late June to October. During that time, three to four hurricanes will strike the eastern coast of the United States. As many as 30 typhoons form in the Pacific & Indian Oceans.

What is a typhoon’s eye?

A typhoon, like a hurricane, is a lot of clouds swirling around in a circle. In the center are very few clouds. If you looked down from above, you’d see a hole. like an eye, in the middle of the clouds. That’s why a typhoon’s center is called the eye.

In the northern hemisphere, hurricanes & typhoons turn in an anticlockwise direction. The center has no clouds. This center, which is produced by a strong downdraught, is called the eye, & it may be as much as 30 to50 kilometers in diameter in a fully developed hurricane or typhoon.

Why do hurricanes bring heavy rains?

Inside a hurricane are a lot of rain clouds, & they bring heavy rain.

Why does the wind blow so hard during a hurricane?

Near the center of a hurricane the air is pushed up with great force. When that happens other air rushes in to take its place. That’s why the wind is strong.

The heavy rains of a hurricane come from cumulo-nimbus clouds near the storm’s center. The total rainfall from one hurricane can be as much as 500 million to 4,000 million tones of water. To understand what an immense volume that is, consider that a reservoir for a metropolis of 10 million people may hold less than 200 million tones. Hurricanes are accompanied by strong winds that can knock down trees & demolish houses.