What caused Typhoon Haiyan?
Similarly, you may ask, what is the cause of the typhoon?
A typhoon forms when winds blow into areas of the ocean where the water is warm. These winds collect moisture and rise, while colder air moves in below. This creates pressure, which causes the winds to move very quickly. The more warm air and moisture there is, the more intense the winds.
In this manner, where did Typhoon Haiyan start?
The thirtieth named storm, thirteenth typhoon, and fifth super typhoon of the 2013 Pacific typhoon season, Haiyan originated from an area of low pressure several hundred kilometers east-southeast of Pohnpei in the Federated States of Micronesia on November 2, 2013.
Haiyan was called a super typhoon for part of its life because of it sustained winds of more than 150 mph. Wind speed, however, is not the only factor that determines the destructiveness of storms. Don't forget about other associated hazards like storm surge, tornadoes, and flooding.