"I wish there was a really good add-on that would show a good simulation of heavy rain, skud, low clouds and gusty winds.
The weather simulation of clouds and rain in FSX is pretty poor."

Lou, I dont know if you have tried it yet, but there is a free (at least for now) program that does a pretty good job with winds, clouds, etc....

I have Active Sky too but this one is pretty impressive...FXrealWX


http://www.rs-transline.de/index.php?page=self&id=2#