Beaufort Scale - Part 1
Weather Conditions Force 0 Calm. Sea like a mirror. Wind Speed: Less than 1 knot. Wave Height: Not more than 3 in. Force 1 Light air. Sea has a series of ripples. Wind Speed: 1 - 3 knots. Wave Height: Not more than 3 in. Force 2 Light breeze. Small short waves appear. Crests have a glassy look and do not break. Usually good fishing weather. Wind Speed: 4 - 6 knots. WaveHeight: About 6 in. Force 3 Gentle breeze. Large wavelets seen. Crests begin to break. Foam of glassy appearance with a few ' white horses' Wind Speed: 7 - 10 knots. Wave Height: About 2 ft.