Pre-flight and Weather Briefing
At 1515 CST, the pilot contacted a Flight Service Station (FSS) and was advised that a frontal system would pass through the Hobart area at approximately 2200. The pilot departed Stillwater at 1840 CST. At that time, the wind was from the south.
En Route and Approach
While en route, at 2004 CST, the pilot contacted Altus Air Force Base for a weather update. The controller reported winds from 210 to 220 degrees at 14 knots. Based on this information and the earlier briefing, the pilot anticipated that winds at Hobart would remain southerly. Consequently, he chose to land on Runway 17.
Landing and Accident
During the landing rollout, the pilot was unable to bring the aircraft to a stop on the runway. The aircraft continued off the end of the runway, struck a ditch, and nosed over. After the accident, the pilot noted that the wind had shifted and was from the north at 10 knots, gusting to 20 knots.
Post-Accident
The pilot reported the details of the accident. No other parties or aircraft were involved. The aircraft sustained damage from the impact with the ditch and the subsequent nose-over. No injuries were reported.