I have a weather station. It displays both the current wind speed and
gust wind speed. The current wind speed is updated about once every 2
minutes. I assume that the gust wind is, according to the standard
you've indicated, updated every 10 minutes, but I will have to verify
that.

Let's say the current wind speed is 15 knots and varies randomly
between 12 knots and 18 knots over a period of one hour. And let's say
that during a 10 minute interval it is noticed that the wind varies
between 13 and 17 knots. Does this imply that there is a gust wind of
17 knots? I find this difficult to understand because I don't see any
difference between the current wind speed and the gust speed. Then
again, maybe I'm assuming something wrong. According to the definition
you provided, I believe the key word is "rapid" fluctuations. Perhaps
it is *how fast* the wind changes, that is, the rate of change. Can you
clarify the definition a little more in regard to the example wind I
just stated?

Thank you
Johann Blake