Wind speed in knots, m / s, km / h mph
Knots | Beaufort | m/s | km/h | mph | Designation | Aspect of the sea |
---|---|---|---|---|---|---|
<1 | 0 | 0 – 0.2 | <1 | <1 | Calm | Clear |
1-3 | 1 | 0.3-1.5 | 1-5 | 1-3 | Light breeze | Small waves, but without foam |
4-6 | 2 | 1.6-3.3 | 6-11 | 4-7 | Flojito (Brisa muy débil) | Crests of glassy appearance, not breaking. |
7-10 | 3 | 3.4-5.4 | 12-19 | 8-12 | Gentle (breeze) | Small waves breaking crests. |
11-15 | 4 | 5.5-7.9 | 20-28 | 13-17 | Light breeze (breeze) | Numerous whitecaps increasingly long waves. |
16-21 | 5 | 8.0-10.7 | 29-38 | 18-24 | Fresquito (Cool Breeze) | Medium and elongated waves, whitecaps abundant. |
22-27 | 6 | 10.8-13.8 | 39-49 | 25-30 | Fresco (breeze) | Large waves begin to form, breaking crests, foam. |
28-33 | 7 | 13.9-17.1 | 50-61 | 31-38 | Frescachón (strong wind) | Heavy seas with foam dragged downwind. |
34-40 | 8 | 17.2-20.7 | 62-74 | 39-46 | Temporary (hard wind) | Large breaking waves, foam stripes. |
41-47 | 9 | 20.8-24.4 | 75-88 | 47-54 | Temporary strong (very hard) | Very large, Surf. Impaired visibility. |
48-55 | 10 | 24.5-28.4 | 89-102 | 55-63 | Storms (Temporary) | Thick tufted waves with crests. White Sea area. |
56-63 | 11 | 28.5-32.6 | 103-117 | 64-73 | Severe storm (Borrasca) | Exceptionally large waves, sea completely white, very low visibility. |
64-71 | 12 | >32.7 | >118 | >74 | Temporary hurricane (Hurricane) | The air is filled with foam and spray. Huge waves. Almost zero visibility. |