The pilot stated that he was conducting a normal landing to runway 33 with twenty degrees of flaps extended. During the landing flare, a gust of wind "abruptly" lifted the left wing, and the right wing struck the grass on the side of the runway. The pilot applied power to recover and the airplane impacted the grass. The nose landing gear then collapsed and the airplane came to rest upright. Postaccident examination by a Federal Aviation Administration inspector revealed substantial damage to the engine firewall, right horizontal stabilizer, elevator, and both wings. The pilot further stated there were no mechanical malfunctions or anomalies with the airplane. The recorded winds at the airport, about the time of the accident, were from 300 degrees at 12 knots.