Wind Gust problem after update to 4.1.1

Gérard P.

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Aug 6, 2020, 3:51:09 AM8/6/20

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Hello,

I have this strange behaviour with the Gust Vectors after upgrading from 3.9.2 to 4.1.1.

It seems to be fake vectors as there is no real gusts.

PWS is a Davis VP2.

Does anybody noticed this ?

Gerard

Tom Keffer

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Aug 6, 2020, 9:02:59 AM8/6/20

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When I look at your regular website, all looks normal. What generated the wind vector image? Is it from the same database?

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Gérard P

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Aug 6, 2020, 12:01:14 PM8/6/20

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Hi Tom,

You found the point. When comparing the skin.conf files between skins, here are the differences :

On the Standard skin

[[[daywindvec]]]

[[[[windvec]]]]

plot_type = vector

On the Exfoliation skin

[[[daywindvec]]]

[[[[windvec]]]]

plot_type = vector

[[[[windgustvec]]]]

plot_type = vector

aggregate_type = max

aggregate_interval = 3600

So, the database is the same but the way graphics are generated is different. It seems that the one hour aggregate generates fake vectors.

Maybe a compute side effect when upgrading because the problem seems to be gone on Exfolation latest graphics when comparing to Standard graphics.

Sure that the aggregate has some relationship with this behavior.

Tom Keffer

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Aug 6, 2020, 12:27:48 PM8/6/20

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I have been able to reproduce this. Give me some time to figure out what is going on...

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Tom Keffer

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Aug 6, 2020, 2:02:55 PM8/6/20

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Fixed in commit a28b7d4.

To fix your copy, replace the file weewx/xtypes.py with this one. If you have trouble finding it, let me know.

-tk

Gérard P

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Aug 6, 2020, 4:08:41 PM8/6/20

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Thank you Tom,

Problem is fixed !

Gerard

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