Originally Posted by
alphacentauri
From the Manual of Aviation Meterology, chapter on Turbulence
Light = 300-1199 fpm
Moderate = 1200-2099 fpm
Severe = 2100-2999 fpm
Extreme = >3000fpm
Caution resurrection... does anyone know where else this data is defined? I can't seem to find it in the RGL
https://rgl.faa.gov/ or the WMO library
https://library.wmo.int/ or via ICAO?