加多到18个等第（0—17级）
2024-06-26Beaufort Scale of Wind 蒲福风级表 图片 Beaufort Scale Description Wind speed(knot) 0 Calm 无风 0 Sea like a mirror1 light air 软风 1-2Ripples but without foam crests2 Light breeze 轻风 3-6Small wavelets. Crests do not break3 Gentle breeze 微风 7-10Large wavelets