On Friday, May 1, 2020 at 7:20:50 PM UTC-4, wrote:
I have seen lennies over tcu and cb countless times - but never any
indication of secondary, tertiary wave action.
Only reason I'm not calling it "wave"...

Often there's a blue wave in back of a cu that pushes into a
higher wind-speed at top of inversion. Decades ago Ingo Renner
taught me to look for that, as the cap cloud on the cu shows
essentially ridge lift, but the rebound (wave) can go much higher.
So while you can get above the cloud in front of it,
you can get much higher downwind.

Hope I explained that OK,
Best Regards, Dave