[MikeM]

Now that I have my station up and running for a few days I noticed that it looks like my station is picking up more and higher values for wind gusts.

In the RX config I have method 1 selected for WindSpikeControl:

Code:

// --------------------------------------------------------------------------------------
//   Define use of Wind Gust Spike prevention routines
// --------------------------------------------------------------------------------------
#define WindSpikeControl 1   // 0= Disable, 1= Enable method 1, 2= Enable method 2

What is the difference between the 2 wind spike control methods?

Do I also need to set something in CumulusMX perhaps?

I have the 6410 Davis Anemometer.

[uncle_bob]

Hi Mike,
I'm pleased you asked this question, as I just noticed it in the newer software myself and thought the same.
I haven't noticed any spike though.

[werk_ag]

What is the difference between the 2 wind spike control methods?

Do I also need to set something in CumulusMX perhaps?

I have the 6410 Davis Anemometer.

Normally, enabling one of the WeatherDuino anti-spike routines is enough to avoid occasional wind gust spikes, however defining it also on Cumulus doesn't cause any problem (10m/s is a good value, I think).

With WeatherDuino, using Method 2 for spike control is preferable than Method 1.
Method 2 acts more like a progressive filter. The greater the last gust was, the greater the current gust can pass the filter.

Method 1 only acts if the current gust reading is greater than 13.8m/s and it may introduce some errors on the gust readings if the wind gusts are constantly above that value. Method 1 will be removed on the next software versions.

I saw the graphs on your web page, and indeed especially on the last day, there is a value that seems a spike. Was it thunderstorm when those spikes happened? I ask this because I already saw thunderstorm causing very strange wind spikes. I will keep a eye in your webpage, and try to see if the spikes continue to happen and in what conditions.

How could you qualify your location, regarding to winds: Very windy, windy, or occasionally windy?
This can be important, because the WeatherDuino can detect very quick bursts of wind (1 second)

I have the 6410 Davis Anemometer.

I'm supposing you have configured the TX software to use it.

[MikeM]

Normally, enabling one of the WeatherDuino anti-spike routines is enough to avoid occasional wind gust spikes, however defining it also on Cumulus doesn't cause any problem (10m/s is a good value, I think).

With WeatherDuino, using Method 2 for spike control is preferable than Method 1.
Method 2 acts more like a progressive filter. The greater the last gust was, the greater the current gust can pass the filter.

Method 1 only acts if the current gust reading is greater than 13.8m/s and it may introduce some errors on the gust readings if the wind gusts are constantly above that value. Method 1 will be removed on the next software versions.

I will change the WeatherDuino WindSpikeControl to Method 2 and see how it goes. Then try and find the wind gust filter setting in CumulusMX if it looks as if I need more filtering.

I saw the graphs on your web page, and indeed especially on the last day, there is a value that seems a spike. Was it thunderstorm when those spikes happened? I ask this because I already saw thunderstorm causing very strange wind spikes. I will keep a eye in your webpage, and try to see if the spikes continue to happen and in what conditions.

We have clear skies at the moment, no thunderstorms.
The last few days has been windy.
Seems as if today the wind is going to be calmer.

How could you qualify your location, regarding to winds: Very windy, windy, or occasionally windy?

This can be important, because the WeatherDuino can detect very quick bursts of wind (1 second)

This is actually a tricky question to answer.
Our winds depend mostly on the time of the year. We do have windy to very windy conditions this time of the year. Sometimes we will have very windy conditions for a few days and then calm for a few before it picks up again.

I have the 6410 Davis Anemometer.

I'm supposing you have configured the TX software to use it.

Correct, 6410 Davis Anemometer set for wind speed and direction in the TX

Code:

// --------------------------------------------------------------------------------------
//   Define type of Wind Speed sensor. See below for allowed types
// --------------------------------------------------------------------------------------
/*
 --- Davis Anemometers ---
 Use 30 for Davis 6410, 7911 anemometer
*/
#define WSpeedSensor_Type 30             // SEE INFO ABOVE!!!

// --------------------------------------------------------------------------------------
//   Define type of Wind Direction sensor
// --------------------------------------------------------------------------------------
/*
--- Davis Wind Vane ---
Use 30 for Davis 6410 wind vane
*/
#define WDirSensor_Type  30  // SEE INFO ABOVE!!!

[werk_ag]

Hi MikeM,

Thanks for your detailed answer. It seems that the changing the Wind Spike control settings is producing good results. No spikes on the last two days.

[MikeM]

Hi Werk_AG,

Yes, it seems that that change in the wind spike control setting is working well.
Will see how it goes when the wind picks up again, been very light winds the last 2 days.