Wind

Wind can make a huge difference to our weather depending upon it’s speed or strength and which direction it is coming from.

Wind Speed

Wind speed can be measured using a number of scales.

Beaufortm/smphkm/h  knotsDescription
10.5 – 1.81 – 31.9 – 6.4  1   –  3light air
21.9 – 3.34 – 76.5 – 12.0  4   –  6light breeze
33.4 – 5.48 – 1212.1 – 19.4  7   – 10gentle breeze
45.5 – 7.913 – 1719.5 – 28.711 – 15breeze
58.0 – 11.018 – 2428.8 – 39.816 – 21fresh breeze
611.1 – 14.125 – 3139.9 – 50.922 – 27strong breeze
714.2 – 17.232 – 3851.0 – 62.028 – 33near gale
817.3 – 20.839 – 4662.1 – 75.034 – 40gale
920.9 – 24.447 – 5475.1   – 87.941 – 47strong gale
1024.5 – 28.555 – 6388.0 – 102.848 – 55storm
1128.6 – 32.664 – 72102.9 – 117.656 – 63violent storm
12> 32.673 – 82> 117.6> 63hurricane
  • What can you find out about the Beaufort Scale?
  • What is a knot?
  • How would you measure wind speed?
  • How does wind speed affect the weather?

Wind Direction

We measure wind direction as the direction from which the wind is coming from.

  • What would you use to measure wind direction?
  • How does wind direction affect the weather?