beaufort scale water characteristics

Answer
The Beaufort scale provides detailed descriptions of sea conditions and wave heights corresponding to different wind speeds. Here are the key water characteristics for each Beaufort number: 0 - Calm: Sea is like a mirror. 1 - Light Air: Ripples with the appearance of scales are formed, but without foam crests. 2 - Light Breeze: Small wavelets, still short but more pronounced, crests have a glassy appearance and do not break. 3 - Gentle Breeze: Large wavelets, crests begin to break, foam of glassy appearance, perhaps scattered white horses (whitecaps). 4 - Moderate Breeze: Small waves, becoming longer, fairly frequent white horses (whitecaps). 5 - Fresh Breeze: Moderate waves, taking a more pronounced long form, many white horses are formed (chance of some spray). 6 - Strong Breeze: Large waves begin to form, white foam crests are more extensive everywhere (probably some spray). 7 - Near Gale: Sea heaps up and white foam from breaking waves begins to be blown in streaks along the wind direction. 8 - Gale: Moderately high waves of greater length, edges of crests begin to break into spindrift, foam blown in well-marked streaks. 9 - Strong Gale: High waves, dense streaks of foam along wind direction, crests begin to topple and tumble. 10 - Storm: Very high waves with long overhanging crests, foam in great patches blown in dense streaks, sea takes on whitish appearance. 11 - Violent Storm: Exceptionally high waves, sea completely covered with long white patches of foam, wave crests blown into froth. 12 - Hurricane: Air filled with foam and spray, sea completely white with driving spray.
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