FYI, there is an existing bug report regarding cloud turbulence and it is “bug-logged”. So hopefully the changes they talked about in the Dev stream and planned for SU15 is to attend this one.
There is another bug report for cloud density that I also hope will be attended but it affects the cloud transparency issue and not the turbulence one. Even if maybe a correlation should exist between density and turbulence, as of today I don’t think that logic is implemented (see some tests performed in some above posts) maybe they should think about it.