sentence: Tropical cyclones are ranked according to their maximum winds using several scales.
sentences_after: These scales are provided by several bodies, including the World Meteorological Organization, the National Hurricane Center, and the Bureau of Meteorology. The National Hurricane Center uses the Saffir-Simpson Hurricane Scale for hurricanes in the eastern Pacific and Atlantic basins. Australia uses a difference set of tropical cyclone categories for their region. The use of different definitions for maximum sustained wind creates additional confusion into the definitions of cyclone categories worldwide.
concept_name: tropical cyclone
headings: Tropical cyclone scales
categories: Tropical cyclones