Forum GraphWeather

Hi Antoine, I saw that in the setup there is an option to calculate in every condition the heat index and the windchill. I tried to set both, but only heat index works. The windchill continues to be calculated only with temperatures below 5°C.
There i a bug?

What is the plugin? If your history contains already WC, HI, it's normal.

I use WS2300 plugin, and yes, the WC value is on the history, but the values are different: while the WC now is shown on history, and in presence of wind is different (more low) from out temperature, on Graph Weather it follow the value of temperature.

No, the WS2300 history. dat does not store the WC or HI. It should work...I use the WS2300 plugin and WC/HI with or without weather norms, and it works.

Uhmmmm... see this graphic:



As you can see with wind over 25-30 km/h, the line of WC is not showed... but the values on history are different:



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There are another problem (or bug) with WsWin plugin: the wind on the rose graphic is not showed correctly:



The graphic is taken from the same day.

As far as I remember windchill factor is calculated below 10°C and above -50°C

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Jean

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If you follow norms (that in any case are a little bit different)... but the WS2300 calculate WC in any condition (watch the history).

Can you send me you history generated by WSWin? The file WSXXXX.DAT

Attached here the history.dat....
There is few data on it, because the old history was corrupted, so I have had to reset it today... anyway you can see on this the value of wc that is different from temperature.



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Here there is the the .dat of Wswin

I use the following model to compute the wind chill:
WC = 13.13f+0.62f*OT-13.95f*powf(WS,0.16f)+0.486f*OT*powf(WS,0.16f);
The WC Twc computed for a temperature T gives Twc > T. It does not make sense, and internally GW set the Twc to T.
It seems HW use another model.
In all cases, I think to have WC and HI on the same graphic does not make sens.

For the wind direction WSWin encode the wind direction as integer and flush the decimal. A wind direction of 22.5 degrees is encoded as 22 degrees. I have to modify something to fix the problem, so in next release.

The problem of wind direction in Wswin plugin is solved with last version! Thanks Antoine.