tropical cyclone formation starting from a low pressure force , which is above the sea surface . In tropical areas , and is where many clouds gathered without apparent rotation of the wind. This low pressure force . When conditions are favorable , they will develop themselves further. Until the circulation of air is clear. In the northern hemisphere the direction of the wind circulation is counterclockwise into the center of the storm. During the whirlwind of violence that has unique features and changes to the environment . Speed circulation systems intensify its strength is in order.