On June 20, 1999, at 1802 Pacific daylight time, a Cessna 182, N91816, was substantially damaged during a hard landing at Roberts Field, Redmond, Oregon. The private pilot and his two passengers were uninjured. Visual meteorological conditions prevailed for the local flight, for which no flight plan had been filed. There was no report of an ELT actuating. According to FAA Air Traffic Control personnel, the airplane flew a normal landing pattern and had a hard landing, which collapsed the nose landing gear. FAA inspectors stated that everything forward of the door posts was bent, and the nose gear had collapsed forward. The pilot stated that he had departed Redmond en route to Roseburg, Oregon, and that a frontal system moved in to the area ahead of schedule. He said he decided to return to Redmond. He stated that while landing, he experienced wind shear and damaged the front landing gear. In his written report, he stated that winds were 20 knots. Weather reports at Redmond at 1755 indicated winds at 340 at 9 knots, and at 1855 at 330 at 11 knots.