- A full blacked pennant or triangle is 50 knots of speed
- A full line on the wind barb is 10 knots of speed
- A half line is 5 knots of speed
1 knot = 1.1507788 miles per hourThe information for wind speed is always given in knots. All you have to do is add up the numbers on the wind barb and you get the wind speed.
To get the wind direction, all you have to do is imagine a compass placed right over top the wind diagram or station model and it will point to the wind direction.