Cinematic 4K. Hazardous air movement. Storm clouds and snowy mountain pass. Timelapse video. High altitude mountain chain ridge time lapse clouds movements blue cloudy sky snowy mountains landscape rocky rock cumulus white snow ice iced winter interstices mount slope inclination blue incline gradient hillside brow shoulder brae tendency bias slant declivity spring sunny day air roof of the world wind breeze flatus ice iced winter blow blast bevel UHD west east north pass south grey approaching highland landscape line lines 3840×2160.