Mountain Wave definition

[superherc]

Does anyone know the definition of different intensity of mountain wave turbulence?? (ie: light, moderate mountain wave)

I looked through the AIM and could not find it.

Thanks.

 

[AntiJedi]

I just did a little googling, and somehow found a chart used by a major airline's meteorology department. Anyhow, here's what they say:

Light: ≤ 200 fpm, +/- 10 kts

Light/Mod: 201-400 fpm, +/- 15 kts

Mod: 401-550 fpm, +/- 20 kts

Mod/Strong: 551-650 fpm, +/- 25 kts

Strong: > 650 fpm, > 25 kts

As a glider pilot, I like to use knots for vertical speed, but this is still great info.