Beaufort Scale Reference
| Force | Knots | Description |
|---|---|---|
| 0 | < 1 | Calm |
| 1 | 1–3 | Light Air |
| 2 | 4–6 | Light Breeze |
| 3 | 7–10 | Gentle Breeze |
| 4 | 11–16 | Moderate Breeze |
| 5 | 17–21 | Fresh Breeze |
| 6 | 22–27 | Strong Breeze |
| 7 | 28–33 | Near Gale |
| 8 | 34–40 | Gale |
| 9 | 41–47 | Strong Gale |
| 10 | 48–55 | Storm |
| 11 | 56–63 | Violent Storm |
| 12 | 64+ | Hurricane |