Typhoon Megi has been named the strongest storm of the year by the National Disaster Risk Reduction and Management Council in the Philippines. So far two people have died. Philippines is a part of the world where infrastructure is fragile and people live in very basic houses so the damage is much greater for them. Just a year ago, tens of thousands of people were in evacuation centers due to four consecutive typhoons that drenched the Philippines with about 500 reported dead. The weather agency warned that the Typhoon Megi could move across the Philippines by midnight and its expected to intensify when it reaches the South China Sea.
After doing some research I learned that a typhoon is a region-specific term given to a tropical cyclone. Typhoons occur when a rough weather wave begins to rotate. The potential of generating a pressure system increases if this wave spins into a complete circle; with higher pressure on the outside and a low-pressure center. If the system maintains its rotation and begins to spiral at a rate greater than 65 knots it is referred to as a tropical cyclone.
Link to site: http://www.ehow.com/how-does_5187631_do-typhoons-occur_.html
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