How do you read the wind level and wind level symbol on a wind vane?

Wind direction and level in weather symbols: represented by wind vectors, composed of wind direction stalks and wind plumes.

Wind direction stalk: points out the direction of wind, which has 8 directions.

Wind feathers: 3 or 4 dashes and triangles represent strong wind force, vertically on the right side of the end of the wind direction pole (Northern Hemisphere)

Level 1--2: 1 vertical bar 1 Horizontal

Level 3--4: 1 vertical bar 2 horizontal

Level 5--6: 1 vertical bar 3 horizontal

Level 7--8: 1 vertical bar 4 horizontal

Level 8 and above: 1 vertical bar 1 triangle like a small flag wind level table