Beaufort | knots | km/h | m/s | Description |
1 | 1 - 3 kn | 1.9 - 6.4 km/h | 0.5 - 1.8 m/sec | Σχεδόν άπνοια |
2 | 4 - 6 kn | 6.5 - 12.0 km/h | 1.9 - 3.3 m/sec | πολύ ασθενής |
3 | 7 - 10 kn | 12.1 - 19.4 km/h | 3.4 - 5.4 m/sec | ασθενής |
4 | 11 - 15 kn | 19.5 - 28.7 km/h | 5.5 - 7.9 m/sec | σχεδόν μέτριος |
5 | 16 - 21 kn | 28.8 - 39.8 km/h | 8.0 - 11.0 m/sec | μέτριος |
6 | 22 - 27 kn | 39.9 - 50.9 km/h | 11.1 - 14.1 m/sec | ισχυρός |
7 | 28 - 33 kn | 51.0 - 62.0 km/h | 14.2 - 17.2 m/sec | Σχεδόν θυελλώδης |
8 | 34 - 40 kn | 62.1 - 75.0 km/h | 17.3 - 20.8 m/sec | θυελλώδης |
9 | 41 - 47 kn | 75.1 - 87.9 km/h | 20.9 - 24.4 m/sec | πολύ θυελλώδης |
10 | 48 - 55 kn | 88.0 - 102.8 km/h | 24.5 - 28.5 m/sec | θύελλα |
11 | 56 - 63 kn | 102.9 - 117.6 km/h | 28.6 - 32.6 m/sec | ισχυρή θύελλα |
12 | > 63 kn | > 117.6 km/h | > 32.6 m/sec | τυφώνας |