After my 1st day working with weather the following is clear now:
1) There is a seconds counter that counts up to a certain maximum value (about 160000 seconds = 44 hrs). This max value represents the weather changing time period.
2) This max. value varies a little bit and surely depends on the settings in scene.dat and campaign files.
3) If the seconds counter reaches the max. value, the counter is reset to 0 and a certain routine (which I already have located) is called which sets new weather settings (windspeed and so on).
4) Then the current weather slowly adjusts to fit the new weather settings.
In the next time I'll set the weather change interval to 1 h or less in order to long-time-record the windspeeds generated in order to see if really windspeed=15 dominates.
If so, I'll try to patch the routine which periodically generates new weather and reduce windspeed a little bit so that we have a homogenuous distribution of windspeed.
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