Rich, It was even easier than I thought.... IF you want it in one location.
Go to
World -
Weather -
User defined weather -
Advanced Weather and play around with cloud heights & types. There are other settings that might help too.
This is in Prepared, and as I said they have volumetric clouds+. Still, you can probably get something close to what you want.
The height of the clouds should be lower for what you want though.
Closer, anyway. Good luck, and show us some pictures however it works out.
BTW - Rex and other programs may have good to great looking clouds, but you DO NOT want real-time weather.
Personally, I have
REX Essential Plus Overdrive but only use it for the textures. For real-time weather I use OpusFSI, although the newest iteration of Active Sky Next looks exceptional.
One last BTW - Take off from runway 36 at KTVL for a good place to start.