Saffir -- Simpson scale Wind speeds Five ≥ 70 m / s, ≥ 137 knots, ≥ 157 mph, ≥ 252 km / h Four 58 -- 70 m / s, 113 -- 136 knots, 130 -- 156 mph, 209 -- 251 km / h Three 50 -- 58 m / s, 96 -- 112 knots, 111 -- 129 mph, 178 -- 208 km / h Two 43 -- 49 m / s, 83 -- 95 knots, 96 -- 110 mph, 154 -- 177 km / h One 33 -- 42 m / s, 64 -- 82 knots, 74 -- 95 mph, 119 -- 153 km / h
what are wind speeds in a category 5 hurricane
≥ 157 mph