This is a large body of air moving in a circular fashion

the first stage of a hurricane

This is the name given to cyclones formed in the Atlantic/Eastern Pacific Oceans

The sysem is classified as this If winds continue to intensify to greater than 63 km/hr (39 mph

This is the name given to cyclones found in the Western Pacific

It is called this one the system obtains a clearly identifiable circulation center

We refer to them as cyclones when they form in this ocean close to India

It is officially upgraded to this once winds are sustained above 120 km/hr the system