The pilot reported that after landing, a gust of wind caught the tail of the airplane from the left. The pilot applied the brakes, and the airplane nosed over. The pilot also reported that he was operating in the traffic pattern with other airplanes, based on ASOS information of winds about 70 degrees from the left, at 7 to 10 miles per hour. Winds recorded 3 minutes after the accident were 130 degrees from the left, at 6, gusting to 15 knots.