Incident Description
Upon approaching the airport for landing, the pilot observed that the wind was blowing from the east and conditions were turbulent. To determine wind direction, the pilot circled the runway and noticed that trees lining the north side of the runway were moving, indicating that the wind was blowing down the runway from the east. The pilot then prepared for landing.
Pilot Actions
During the landing roll, immediately after passing the line of trees, the airplane yawed to the left. The pilot corrected, and then the airplane yawed to the right. The pilot applied full left rudder and brake action in response, but the airplane ground looped.
Outcome
The ground loop resulted in substantial damage to the airplane.