According to the pilot, he received a weather briefing that stated there was a convective SIGMET (significant meteorological information) over the airport and the storm would be arriving in about one hour. After receiving the briefing, the pilot preflighted the airplane, and proceeded to take off of runway 18 on a local solo flight. The pilot stated that during different phases of each traffic pattern, he had a difficult time due to the gusty wind conditions. On final approach to runway 18, he realized that the airspeed and altitude of the airplane were too high and he initiated a go-around. The pilot stated that he recognized "the difficultly landing in gusty conditions" and requested assistance over the UNICOM frequency. A pilot, who was required to monitor the solo flight, advised the student pilot to fly away from the airport and set up for a long final approach to runway 36. On final approach, the pilot of the accident airplane stated that he "continued to encounter gusty conditions" and was advised to lower the left wing of the airplane to compensate for the crosswind. The pilot stated when the airplane first touched down, it was a "rough landing," and "the airplane bounced a few times." The airplane overran the end of the runway and hit a small ditch damaging the firewall. The pilot did not report any mechanical failures or malfunctions of the airplane. Winds, recorded at an airport 8 miles to the northwest about the time of the accident, were from 260 degrees at 10 knots, gusting to 18 knots.