The pilot reported that he attempted to takeoff with a strong crosswind. During the takeoff sequence, the airplane veered off the airstrip onto soft dirt and subsequently nosed over. Weather reporting stations within 30 nautical miles (nm) of the airstrip reported wind from 324 degrees, varying from 6 to 7 knots and gusting up to 16 knots. The pilot reported that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal flight.