Beaufort is treated as a separate observation type, not an alternative
unit. So, you should be able to use it like any other type. For example,

  <p>The current wind speed is $current.windSpeed, which is beaufort
$current.beaufort.</p>

If you want to plot it, you would need to put 'beaufort' in your database
schema.

-tk



On Wed, Jul 8, 2020 at 6:42 AM Vetti52 <drve...@gmail.com> wrote:

> Hi you Weewx experts!
>
> first I would like to say, that my station ( a WS2900 clone) is not that
> sophisticated, especially concerning wind speed and direction. There are
> many tall trees around, being closer than their 10fold height, so that the
> wind is often much smoother and more disturbed than on top of the trees.
> However, I still would like to compare the data to the data provided by
> local weather forecasters. Commonly the wind is announced in the literally
> equation of the predicted Beaufort value. So, they talk of "fresh breeze",
> when wind with 5 bft is expected. Therefore I wanted to display the wind
> data in bft and its literal equivalent also. In Weewx 3 I adopted the
> solution found here:
> https://groups.google.com/d/topic/weewx-user/b7TqpYD9sxY/discussion
> which works fine so far.
> After upgrading to Weewx 4 I found a new entry in
>
> [StdWXCalculate]
>     [[Calculations]]
>           beaufort = prefer_hardware
>
> which raised the question, if I could replace the previous solution by
> that introduced in version 4.
> I expected, that there would be an option in the [[[Units]]] section to
> chose 'beaufort' instead of 'knot'. But this is not offered in the options
> there. Anyway, this would not be the solution, because I want to see the
> wind speed as it is actually shown, and *in addition *in terms of
> Beaufort. This should also be shown in an extra graph over time.
>
> Does anyone have a clue, how to manage this?
>
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