orographic
/ˌɔrəˈɡræfɪk/
adjective
- Relating to mountains, especially the way mountains affect weather and the formation of clouds and rain.
- Orographic clouds form when moist air is forced upward by a mountain slope.
- The region's orographic precipitation supports lush forests on the western slopes.
- The orographic effect causes heavy rainfall on the windward side of the mountain range.