Maybe? I actually want the ground thermals, but would like them to go away a few thousand feet up, as they do IRL. I can add a Wind layer, but then it’ss all too intense. Remove all winds and I don’t feel them at all.
Who knows? 
I am still curious, if I’ve set a wind layer at say 4,000’ does that affect 4,000’ and below? 4,000’ and above? A thousand feet either side??