Saffir–Simpson scale
Saffir–Simpson scale From Wikipedia, the free encyclopedia (Redirected from Major hurricane) Jump to navigation Jump to search "SSHS" redirects here. For other uses, see SSHS (disambiguation). 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. Saffir–Simpson scale Category Wind speeds (for 1-minute maximum sustained winds) m/s knots (kn) mph km/h Five ≥ 70 m/s ≥ 137 kn ≥ 157 mph ≥ 252 km/h Four 58–70 m/s 113–136 kn 130–156 mph 209–251 km/h Three 50–58 m/s 96–112 kn 111–129 mph 178–208 km/h Two 43–49 m/s 83–95 kn ...