<P> The Saffir--Simpson hurricane wind scale (SSHWS), formerly the Saffir--Simpson hurricane scale (SSHS), classifies hurricanes--Western Hemisphere tropical cyclones that exceed the intensities of tropical depressions and tropical storms--into five categories distinguished by the intensities of their sustained winds . </P> <Table> Saffir--Simpson scale <Tr> <Th> </Th> <Th_colspan="4"> Wind speeds (for 1 - minute maximum sustained winds) </Th> </Tr> <Tr> <Td> m / s </Td> <Td> knots (kn) </Td> <Td> mph </Td> <Td> km / h </Td> </Tr> <Tr> <Th> Five </Th> <Td> ≥ 70 m / s </Td> <Td> ≥ 137 kn </Td> <Td> ≥ 157 mph </Td> <Td> ≥ 252 km / h </Td> </Tr> <Tr> <Th> Four </Th> <Td> 58--70 m / s </Td> <Td> 113--136 kn </Td> <Td> 130--156 mph </Td> <Td> 209--251 km / h </Td> </Tr> <Tr> <Th> Three </Th> <Td> 50--58 m / s </Td> <Td> 96--112 kn </Td> <Td> 111--129 mph </Td> <Td> 178--208 km / h </Td> </Tr> <Tr> <Th> Two </Th> <Td> 43--49 m / s </Td> <Td> 83--95 kn </Td> <Td> 96--110 mph </Td> <Td> 154--177 km / h </Td> </Tr> <Tr> <Th> One </Th> <Td> 33--42 m / s </Td> <Td> 64--82 kn </Td> <Td> 74--95 mph </Td> <Td> 119--153 km / h </Td> </Tr> </Table> <Tr> <Th> </Th> <Th_colspan="4"> Wind speeds (for 1 - minute maximum sustained winds) </Th> </Tr>

Is there a such thing as category 6 hurricane