During the landing roll on runway 35L, the aircraft ground looped. The pilot reported that during the approach, at about 300 feet, he noticed 'left crosswind gusts.' After normal main wheel contact (wheel landing) the 'aircraft started scooting right while trying to weathervane to the left.' The reported wind condition at the time of the accident was from 290 degrees at 13 knots, gusting to 17 knots.