When severe mountain waves are present, where would the area of most severe turbulence be located?

1) Which cloud type may indicate the presence of severe turbulence?

2) At the top of orographic waves, in mountainous regions, the cloud most likely to be encountered is:

3) In mid-latitudes, the tops of Cumulus are often limited by:

4) Stratus formed by turbulence will occur when:

5) When severe mountain waves are present, where would the area of most severe turbulence be located?