Cumulus Support

Hi

does anyone know of a scale, similar to the Beaufort Scale, for wind run.

What I mean is (for example) up to 30 miles = Calm. 31 to 70 = Light.

I look forward to your replies.

John

Windrun is not a 'speed' nor rate per se.

It is simply the distance that would have been covered over the day (24 hrs)

Yep, I get that but what has that got to do with my question?

If you read my question I said "similar to the Beaufort". What I meant was a scale of wind run values that would quantify the amount of wind that passed my weather station in an easy form for my weather diary. Rather than say that the wind run today was 167 miles I would like to be able to say that it was a windy day, the term "windy day would have a meaning of wind runs between 200 and 300 miles.

The end result for me would be that I could say that this year had X calm days.

Maybe there just is not such a scale.

John

You could in fact invent your own wording using the Beaufort Scale, simply dividing the windrun by 24 gives the average (hourly) rate, which is how Beaufort is measured.

I am not aware of any 'official' description ... although there may be something hidden away in green energy sites where windrun is an important calculation factor for eg. wind turbines.

beteljuice wrote:You could in fact invent your own wording using the Beaufort Scale, simply dividing the windrun by 24 gives the average (hourly) rate, which is how Beaufort is measured.

I am not aware of any 'official' description ... although there may be something hidden away in green energy sites where windrun is an important calculation factor for eg. wind turbines.

Thanks for that.

I shall troll through a few wind turbine / green energy sites.

If I find nothing then I shall take your advice and create my own.

Thanks again.

John

SomersetJohn wrote:

beteljuice wrote:You could in fact invent your own wording using the Beaufort Scale, simply dividing the windrun by 24 gives the average (hourly) rate, which is how Beaufort is measured.

I am not aware of any 'official' description ... although there may be something hidden away in green energy sites where windrun is an important calculation factor for eg. wind turbines.

Thanks for that.

I shall troll through a few wind turbine / green energy sites.

If I find nothing then I shall take your advice and create my own.

Thanks again.

John

As Beteljuice has observed, wind run is merely a speed measurement averaged over a large time window - miles (kilometers) per day rather than miles (kilometers) per hour. So, you could (possibly implausibly, but you get my drift) have a force 6 wind for one hour of the day with the other 23 hours flat calm. The average would show that day to be calm, but that wouldn't be a terribly helpful representation of what happened.