Beaufort Wind Scale

Force 1 = 1-3 Knots = 0.5-1.5 Metres = Light Breeze = Calm,

Force 2 = 4-6 Knots = 2.0-3.0 Metres = Light Breeze = Smooth,

Force 3 = 7-10 Knots = 3.5-5 Metres = Gentle Breeze = White Horses,

Force 4 = 11-16 Knots = 5.5-8 Metres = Mod Breeze = Small Waves,

Force 5 = 17-21 Knots = 9-10.5 Metres = Fresh Breeze = Larger Waves,

Force 6 = 22-27 Knots = 11-13.5 Metres = Strong Breeze = Rough,

Force 7 = 28-33 Knots = 14-16.5 Metres = Near Gale = Very Rough,

Force 8 = 34-40 Knots = 17-20.5 Metres = Gale = High Seas,

Force 9 = 41-47 Knots = 21-24 Metres = Strong Gale = Severe Seas,

Force 10 = 48-55 Knots = 25-28 Metres = Storm = V Severe Conditions