Ball of Light flies around high Sierra narrow canyon for 40 minutes on severely windy dawn6:00am at 9,700 ft. elevation in narrow, sierra canyon. Bright ball of light (unidentified flying object) flew around canyon, appearing to be never more than 15 miles away from observation location, seemingly unaffected by 50-70 MPH storm winds rolling through the region. Ball of light, UFO, flew around and through small clouds. Light from the UFO sometimes reflected on the passing clouds. Was observed for a full 40 minutes until witness had to break observation. No recording device was available.No sound was noticed from the UFO, nor was there any sign of propellers or exhaust.