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What are Cyclones?

11/15/2013 8:01:12 AM | by Anonymous

Cyclones

A cyclone is a type of strong storm that has low pressures that causes the winds to swirl. These cyclones usually happen in tropical areas. As these winds are very strong, they often cause a lot of damage and may sometimes cause flooding due to the sudden increase in rainfall. Although these cyclones are not as powerful as hurricanes, they can still cause a lot of destruction. Injuries, property damage and sometimes even death may occur.


Cyclones in tropical areas often occur due to a number of reasons. The reasons are: if the ocean water’s temperature is higher than 25 degrees Celsius, if there is some sort of disturbance in the atmosphere like an area with significantly cooler air and the pressure is lower or if the air around at different heights are inconsistent. These factors only apply to tropical areas however, and cyclones that develop in the areas often do not stray that far out from the equator. This is because of something called the corolis effect. The corolios effect is when there is too little energy apart from the equator to provide cyclones with the required spin as the earth’s rotation causes the energy to be highest at the equator.


The most common reason of cyclones is the disturbance of atmosphere due to low pressures. The wind often enters areas that are mixed with low and high pressure. The warm ocean will cause the wind to warm up and rise towards the high pressure areas. The constant movement of air and water vapor will start to cause a thunder storm when it condenses at the top. Furthermore, water is constantly being picked up from the vast ocean which fuels it even more. While people think that cyclones are destructive, they are actually quite important as they play the role of distributing heat away from the equator.


Cyclones can reach wind speeds of up to 120 kilometers per hour. If the cyclones reach higher wind speeds then it may be considered a hurricane or typhoon instead. The most dangerous thing about cyclones is the sudden increase in rainfall. Excess rainfall causes massive flooding and mudslides which causes damage to property, loss of lives and injury. In more serious cases, rainfall can reach over a meter after a few days of excess rainfall.


Apart from the excess windfall, the strong winds are also a danger. The strong winds pick up ordinary objects such as signs, tree branches and other outdoor equipment into flying hazards. These objects may potentially harm people and buildings as the wind flings these objects around. The wind can also cause large waves to occur that will harm marine life, boaters and people living in coastal areas. The large waves may also sweep over low lying areas. The strong winds may also cause tornadoes to form, sometimes more than one. These tornadoes combined with the strong winds may cause a disturbing amount of damage.

 

These cyclones often weaken once they move over ocean waters that are cooler as they are fueled by warm ocean waters. Eventually the cyclones start to lose energy and die off. Even after they die off, the heavy rainfall left behind can still cause quite a lot of damage. Cyclones or storms are typically named after people. In Asia, the cyclones may be named after animals, flowers and other things.


Cyclones can be very dangerous for people especially when they are outdoors. Many people think that they are safe in their homes but this is not entirely true. There is often sufficient warning for people when a cyclone occurs enabling them to evacuate to storm shelters. Not only are people able to predict the cyclone’s arrival, but they are also able to predict the location, path and its intensity. Once confirmed, a warning signal will be sent out to people for them to take the necessary precautions.

 

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