>>1351138Probably one of those ultra steep roofs with the super high peak to help keep snow from piling up.
>>1351081Put the wind ammeter where you will be experiencing the wind yourself. That is the only reading you'll be wanting if you are using this data for yourself and want to know the wind chill factors. On the roof means it would be far faster as the roof directs the wind differently and there's less obstacles in the way. Above the tree line is where you put wind turbines and fly kites because that's the fastest and most steady area of wind, but the data is useless to people on the ground though important to pilots.
Thus, where you want it mounted with the yellow arrow seems like the best place.