The Saffir-Simpson Hurricane Wind Scale (SSHWS) is a 1 to 5 rating/category based on a Hurricane’s maximum sustained wind speed.
The SSHWS guesstimates the potential of property damage.
Hurricanes reaching Category 3 and higher are often considered major because of their potential for significant loss of life and damage.
Category 1 and 2 Hurricanes can still be considered dangerous however preventative measures are required.
In the western North Pacific, the term, Super Typhoon is used for Tropical Cyclones that have sustained winds exceeding one hundred and fifty miles per hour.
Detailed information on the SSHWS can be found here.