What is the sign of the wind?

The signs of the wind are the mast and the feather. Wind handle: indicates the direction of the wind, with eight directions. Wind feather: 3 or 4 short strokes and triangles indicate strong wind, perpendicular to the right side of the wind pole (northern hemisphere).

Wind direction and speed:

The wind direction is subject to latitude and longitude. That is to say, if a person gets a weather map, he will make the latitude horizontal, up north and down south. After observing the wind vane, the vertical direction of F refers to the direction that the wind blows away, which is expressed by the wind vector and consists of wind stems and wind plumes.

Wind speed is the forward speed of the wind. The greater the air pressure difference between two adjacent places, the faster the air flow, the greater the wind speed and the greater the wind force. Therefore, the magnitude of wind is usually expressed by wind power. The unit of wind speed is meters per second or kilometers per hour.