— A weather vane is an instrument used to show the direction the wind is blowing from. ... The tail fin catches the wind and the arrow points toward the direction the wind is blowing FROM. If the arrow on the weather vane is pointing north then it means there is a north wind.

What does a wind vane show?

The wind vane, used for indicating wind direction, is one of the oldest meteorological instruments. When mounted on an elevated shaft or spire, the vane rotates under the influence of the wind such that its center of pressure rotates to leeward and the vane points into the wind (Figure 3).

Which instrument shows the direction of wind?

The wind vane is another weather instrument. This instrument is used to measure the direction of the wind. A wind vane can be made from a variety of materials, but should be heavy enough to withstand strong winds.