Mountain flying knowledge required?

"Toño" wrote

Not according to Sparky Imeson....

"...the rotor cloud will be downwind from the mountain range and extend
anywhere from the earth's surface to up to mountain-top level".

--p.63 of "Mountain Flying" by Sparky Imeson
Antonio

There is some disagreement with this, and here is a clip:
Normally the rotor clouds is centered beneath the lenticular cloud. Most
often it extends anywhere from ground level to mountaintop level, but is
frequently observed up to 35,000 feet. Destructive turbulence from the rotor
rarely exists more than 2,000-3,000 feet above mountaintop level.

http://www.mountainflying.com/mountain_wave2.htm

My point is, just because you clear the ridge, there are still dangers that
can ruin your day, if the winds are right. Further down in the article,
this author talks about rotors that do not have a visible cloud.

If the wind is blowing strong, close to perpendicular to the ridge, best
wait until early the next day, and see if the winds are calmed down.

Hey, I just read, and remember. I have no idea if what everyone says is
true. I would rather be safe, than sorry. YMMV
--
Jim in NC