Wind direction

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An example of a wind vane.
An example of a wind vane.

Wind direction is the direction from which the wind is blowing. It is usually reported in cardinal directions or in azimuth degrees.

There are a variety of instruments used to measure wind direction, such as the windsock and wind vane. Both of these instruments work by moving to minimize air resistance. They way they are pointed by prevailing winds indicates the direction from which the wind is blowing.

Modern instruments, called electronic anemometers measure wind direction in a similar fashion but contain electronics to translate directional data from the vane into formats which computers can interpret. Many of these instruments measure wind speed as well.


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