How to determine the wind direction by using the wind vane

Wind direction judgment: the wind blowing from any direction is called wind, such as:

Southeast wind

This is the southeast wind. The weather is often F, which is the north wind level 4; 1 is called mast, and the second is called weather vane. The first horizontal level is 2, the second horizontal level is 4, the third horizontal level is 6, and the eighth level is small.

triangular form

Xiaoqi said. What about the wind direction? Please compare

-Windmill:+

To judge!