Feedback:User/Youknowho/Dynamic weather

In Guild Wars 2 all locations should make use of dynamic weather conditions. In Guild Wars the weather does not change for any location and is always sunny, raining, snowing, etc. If Guild Wars 2 has dynamic weather that changes, even just occasionally, this will go a long way towards giving the world a persistent feel.

These weather changes could be tied in with real-world seasons, as well as being location-specific (hotter closer to the equator, more rain and snow towards the poles). Weather conditions could even affect a user's movement in the world (rain slows running a little, snow slows the player down a lot). You may have already implemented this but I have yet to hear anything about it. Think it over!