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weatherpages | beaufortscale

beaufort wind force
km/h 		force
kn 		sea states
0 no wind <1 <1 calm sea
1 light air 1-5 1-3 ripples, no foam
2 light breeze 6-11 4-6 small glassy wavelets
3 gentle breeze 12-19 7-10 begin whitecapping
4 many whitecaps 20-28 11-16 many whitecaps
5 fresh breeze 29-38 17-21 8' whitecaps and spray
6 strong breeze 39-49 22-27 8-13' solid whitecaps
7 near gale 50-61 28-33 13-18' white foam streaks
8 gale 62-74 34-40 18-30' with spindrift off crests
9 strong gale 75-88 41-47 large rolling waves and foam
10 storm 89-102 48-55 35'+ vis reducted by spray
11 violent storm 103-117 56-63 huge waves, solid spray, foam
12 hurricane >117 >63 46'+ sea white with foam

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