"Newps" wrote in message
...


Chris W wrote:
mindenpilot wrote:

You can expect LARGE updrafts and downdrafts.
It is important to know where they may occur in relation to the mountain
ridge.
Like I said, if you actually fly in it a couple times, it becomes a
little more obvious.

Is there an altitude above the ridge line at which the "mountain wave"
effect isn't significant?

Not for your plane. Airlines will reroute around these areas to avoid
mountain wave.

But they do it because the wave system often gets turbulent up by the
tropopause where they are flying. In the mid altitudes the wave is smooth.

Mike
MU-2