| Beaufort 0 - calm (0 knot) |
| Beaufort 1 - light air (1 to 3 knots) |
| Beaufort 2 - light breeze (4 to 6 knots) |
| Beaufort 3 - gentle breeze (7 to 10 knots) |
| Beaufort 4 - moderate breeze (11 to 16 knots) |
| Beaufort 5 - fresh breeze (17 to 21 knots) |
| Beaufort 6 - strong breeze (22 to 27 knots) |
| Beaufort 7 - High wind, moderate gale, near gale (28 to 33 knots) |
| Beaufort 8 - gale, fresh gale (34 to 40 knots) |
| Beaufort 9 - strong/severe gale (41 to 47 knots) |
| Beaufort 10 - storm, whole gale (48 to 55 knots) |
| Beaufort 11 - violent storm (56 to 63 knots) |
| Beaufort 12 - hurricane force (at least 64 knots) |
