Category | Sustained wind speed | Storm surge (ft) | Damage potential | ||
mph | km/h | knots | |||
Tropical Depression | <39 | <63 | <34 | - | - |
Tropical Storm | 40 - 73 | 64 - 117 | 34 - 63 | - | Very Minimal |
1 | 74 - 95 | 119 - 153 | 64 - 82 | 4 - 5 | Minimal |
2 | 96 - 110 | 154 - 177 | 83 - 95 | 6 - 8 | Moderate |
3 | 111 - 129 | 178 - 208 | 96 - 112 | 9 - 12 | Major |
4 | 130 - 156 | 209 - 251 | 113 - 136 | 13 - 18 | Extensive |
5 | ≥157 | ≥252 | ≥137 | >18 | Catastrophic |