THE PILOT HAD DEPARTED HIS PRIVATE AIRSTRIP 15 MINUTES EARLIER AND WAS TURNING FINAL FOR A LANDING TO THE SOUTH WHEN THE AIRPLANE HIT FIRST A TREE AND THEN THE GROUND. THE PILOT STATED A GUST OF WIND MADE THE AIRPLANE UNCONTROLLABLE AND BLEW IT INTO THE TREE. THE PILOT ALSO STATED THE WIND WAS FROM THE WEST-SOUTHWEST AT AN ESTIMATED 18 KNOTS GUSTING TO 25 KNOTS. WEATHER LISTED ABOVE UNDER WEATHER DATA WAS OBSERVED AT COLLEGE STATION, TEXAS, 38 NM FROM THE ACCIDENT SITE.